Nfc HAL uses "default" service name

The getService() and registerAsService() methods of interface objects
now have default parameters of "default" for the service name. HALs
will not have to use any service name unless they want to register
more than one service.

Test: builds; verify HAL still works

In support of b/33844934

Change-Id: Id7b76e1df98e1ecacb530a1b5fec76bf14ba6eb7

nfc/1.0/default/Nfc.cpp

@@ -65,7 +65,7 @@ INfc* HIDL_FETCH_INfc(const char * /*name*/) {
         }
     }
     else
-        ALOGE ("hw_get_module failed: %d", ret);
+        ALOGE ("hw_get_module %s failed: %d", NFC_NCI_HARDWARE_MODULE_ID, ret);
 
     if (ret == 0) {
         return new Nfc(nfc_device);

nfc/1.0/default/service.cpp

@@ -9,5 +9,5 @@ using android::hardware::nfc::V1_0::INfc;
 using android::hardware::defaultPassthroughServiceImplementation;
 
 int main() {
-    return defaultPassthroughServiceImplementation<INfc>("nfc_nci");
+    return defaultPassthroughServiceImplementation<INfc>();
 }

nfc/1.0/vts/functional/nfc_hidl_hal_test.cpp

@@ -37,8 +37,6 @@ using ::android::hardware::Void;
 using ::android::hardware::hidl_vec;
 using ::android::sp;
 
-#define NFC_NCI_SERVICE_NAME "nfc_nci"
-
 /* NCI Commands */
 #define CORE_RESET_CMD \
   { 0x20, 0x00, 0x01, 0x00 }
@@ -61,7 +59,7 @@ static bool passthrough = true;
 class NfcHidlTest : public ::testing::Test {
  public:
   virtual void SetUp() override {
-    nfc_ = INfc::getService(NFC_NCI_SERVICE_NAME, passthrough);
+    nfc_ = INfc::getService(passthrough);
     ASSERT_NE(nfc_, nullptr);
 
     nfc_cb_ = new NfcClientCallback(*this);

nfc/1.0/vts/functional/vts/testcases/hal/nfc/hidl/host/NfcHidlBasicTest.py

@@ -54,7 +54,6 @@ class NfcHidlBasicTest(base_test_with_webdb.BaseTestWithWebDbClass):
             target_version=1.0,
             target_package="android.hardware.nfc",
             target_component_name="INfc",
-            hw_binder_service_name="nfc_nci",
             bits=64 if self.dut.is64Bit else 32)
 
     def tearDownClass(self):