Wifi: Add getConnectionCapabilities API

This commit adds the API for getConnectionCapabilities() in
ISupplicantStaIface HAL. This is used to return the Wifi support
for the connection on this STA interface.

Bug: 138634524
Bug: 140168755
Test: Manual
Test: VTS test
Change-Id: I24ff3c16434067e41491298e41041bdfdf06452a
diff --git a/wifi/supplicant/1.3/ISupplicantStaNetwork.hal b/wifi/supplicant/1.3/ISupplicantStaNetwork.hal
index 5e265c6..ab08cff 100644
--- a/wifi/supplicant/1.3/ISupplicantStaNetwork.hal
+++ b/wifi/supplicant/1.3/ISupplicantStaNetwork.hal
@@ -60,6 +60,5 @@
      *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
      *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
      */
-    setPmkCache(vec<uint8_t> serializedEntry)
-        generates (SupplicantStatus status);
+    setPmkCache(vec<uint8_t> serializedEntry) generates (SupplicantStatus status);
 };