Generate serial number randomly in VTS unit test

Any fixed integer can be returned by vendor's APIs response.
Ideally it should be a random value for testing a vendor library.

Applying this to all the unit tests serial number.

Bug: 38499889
Test: adb shell data/local/tmp/VtsHalRadioV1_0TargetTest
Change-Id: I491db829cca607fad9f6a21987de92269d115253
diff --git a/radio/1.0/vts/functional/sap_callback.cpp b/radio/1.0/vts/functional/sap_callback.cpp
index 3a06ecd..fdcc15c 100644
--- a/radio/1.0/vts/functional/sap_callback.cpp
+++ b/radio/1.0/vts/functional/sap_callback.cpp
@@ -18,78 +18,74 @@
 
 SapCallback::SapCallback(SapHidlTest& parent) : parent(parent) {}
 
-Return<void> SapCallback::connectResponse(int32_t token,
-                                          SapConnectRsp /*sapConnectRsp*/,
+Return<void> SapCallback::connectResponse(int32_t token, SapConnectRsp /*sapConnectRsp*/,
                                           int32_t /*maxMsgSize*/) {
-  sapResponseToken = token;
-  parent.notify();
-  return Void();
+    sapResponseToken = token;
+    parent.notify();
+    return Void();
 }
 
 Return<void> SapCallback::disconnectResponse(int32_t token) {
-  sapResponseToken = token;
-  parent.notify();
-  return Void();
+    sapResponseToken = token;
+    parent.notify();
+    return Void();
 }
 
-Return<void> SapCallback::disconnectIndication(
-    int32_t /*token*/, SapDisconnectType /*disconnectType*/) {
-  return Void();
+Return<void> SapCallback::disconnectIndication(int32_t /*token*/,
+                                               SapDisconnectType /*disconnectType*/) {
+    return Void();
 }
 
-Return<void> SapCallback::apduResponse(
-    int32_t token, SapResultCode resultCode,
-    const ::android::hardware::hidl_vec<uint8_t>& /*apduRsp*/) {
-  sapResponseToken = token;
-  sapResultCode = resultCode;
-  parent.notify();
-  return Void();
+Return<void> SapCallback::apduResponse(int32_t token, SapResultCode resultCode,
+                                       const ::android::hardware::hidl_vec<uint8_t>& /*apduRsp*/) {
+    sapResponseToken = token;
+    sapResultCode = resultCode;
+    parent.notify();
+    return Void();
 }
 
 Return<void> SapCallback::transferAtrResponse(
     int32_t token, SapResultCode resultCode,
     const ::android::hardware::hidl_vec<uint8_t>& /*atr*/) {
-  sapResponseToken = token;
-  sapResultCode = resultCode;
-  parent.notify();
-  return Void();
+    sapResponseToken = token;
+    sapResultCode = resultCode;
+    parent.notify();
+    return Void();
 }
 
-Return<void> SapCallback::powerResponse(int32_t token,
-                                        SapResultCode resultCode) {
-  sapResponseToken = token;
-  sapResultCode = resultCode;
-  parent.notify();
-  return Void();
+Return<void> SapCallback::powerResponse(int32_t token, SapResultCode resultCode) {
+    sapResponseToken = token;
+    sapResultCode = resultCode;
+    parent.notify();
+    return Void();
 }
 
-Return<void> SapCallback::resetSimResponse(int32_t token,
-                                           SapResultCode resultCode) {
-  sapResponseToken = token;
-  sapResultCode = resultCode;
-  parent.notify();
-  return Void();
+Return<void> SapCallback::resetSimResponse(int32_t token, SapResultCode resultCode) {
+    sapResponseToken = token;
+    sapResultCode = resultCode;
+    parent.notify();
+    return Void();
 }
 
-Return<void> SapCallback::statusIndication(int32_t /*token*/,
-                                           SapStatus /*status*/) {
-  return Void();
+Return<void> SapCallback::statusIndication(int32_t /*token*/, SapStatus /*status*/) {
+    return Void();
 }
 
-Return<void> SapCallback::transferCardReaderStatusResponse(
-    int32_t token, SapResultCode resultCode, int32_t /*cardReaderStatus*/) {
-  sapResponseToken = token;
-  sapResultCode = resultCode;
-  parent.notify();
-  return Void();
+Return<void> SapCallback::transferCardReaderStatusResponse(int32_t token, SapResultCode resultCode,
+                                                           int32_t /*cardReaderStatus*/) {
+    sapResponseToken = token;
+    sapResultCode = resultCode;
+    parent.notify();
+    return Void();
 }
 
-Return<void> SapCallback::errorResponse(int32_t /*token*/) { return Void(); }
+Return<void> SapCallback::errorResponse(int32_t /*token*/) {
+    return Void();
+}
 
-Return<void> SapCallback::transferProtocolResponse(int32_t token,
-                                                   SapResultCode resultCode) {
-  sapResponseToken = token;
-  sapResultCode = resultCode;
-  parent.notify();
-  return Void();
+Return<void> SapCallback::transferProtocolResponse(int32_t token, SapResultCode resultCode) {
+    sapResponseToken = token;
+    sapResultCode = resultCode;
+    parent.notify();
+    return Void();
 }