Use lowercase booleans in VTS test configs.

Use lowercase booleans so that they can be parsed in Java
and Python.

Test: run vts -m HalNfcHidlTargetBasicTest
Change-Id: I16e2f417047219a88d49ed5b0651639a0cc2bf61
diff --git a/nfc/1.0/vts/functional/vts/testcases/hal/nfc/hidl/host/passthrough/NfcHidlPassthroughBasicTest.config b/nfc/1.0/vts/functional/vts/testcases/hal/nfc/hidl/host/passthrough/NfcHidlPassthroughBasicTest.config
index 9300c6f..c2429e0 100644
--- a/nfc/1.0/vts/functional/vts/testcases/hal/nfc/hidl/host/passthrough/NfcHidlPassthroughBasicTest.config
+++ b/nfc/1.0/vts/functional/vts/testcases/hal/nfc/hidl/host/passthrough/NfcHidlPassthroughBasicTest.config
@@ -1,6 +1,6 @@
 {
-    "passthrough_mode": True,
-    "coverage": True,
+    "passthrough_mode": true,
+    "coverage": true,
     "modules": [{
                     "module_name": "system/lib64/hw/nfc_nci.bullhead",
                     "git_project": {
diff --git a/nfc/1.0/vts/functional/vts/testcases/hal/nfc/hidl/target/HalNfcHidlTargetBasicTest.config b/nfc/1.0/vts/functional/vts/testcases/hal/nfc/hidl/target/HalNfcHidlTargetBasicTest.config
index 2574bda..e6b5a2c 100644
--- a/nfc/1.0/vts/functional/vts/testcases/hal/nfc/hidl/target/HalNfcHidlTargetBasicTest.config
+++ b/nfc/1.0/vts/functional/vts/testcases/hal/nfc/hidl/target/HalNfcHidlTargetBasicTest.config
@@ -1,5 +1,5 @@
 {
-    "coverage": True,
+    "coverage": true,
     "modules": [{
                     "module_name": "system/lib64/hw/nfc_nci.bullhead",
                     "git_project": {