Load legacy NFC libhardware HAL by correct name.

Use NFC_NCI_HARDWARE_MODULE_ID, which maps to "nfc_nci",
and is correct for the PN54x HAL (which is the only
remaining HAL implementation in use).

Test: NFC works
Change-Id: Ida810ec990ddb4f71756225fffb3fc2757e76374
diff --git a/nfc/1.0/default/Nfc.cpp b/nfc/1.0/default/Nfc.cpp
index 0759605..9d05fc2 100644
--- a/nfc/1.0/default/Nfc.cpp
+++ b/nfc/1.0/default/Nfc.cpp
@@ -51,21 +51,21 @@
 }
 
 
-INfc* HIDL_FETCH_INfc(const char *hal) {
+INfc* HIDL_FETCH_INfc(const char * /*name*/) {
     nfc_nci_device_t* nfc_device;
     int ret = 0;
     const hw_module_t* hw_module = NULL;
 
-    ret = hw_get_module (hal, &hw_module);
+    ret = hw_get_module (NFC_NCI_HARDWARE_MODULE_ID, &hw_module);
     if (ret == 0)
     {
         ret = nfc_nci_open (hw_module, &nfc_device);
         if (ret != 0) {
-            ALOGE ("nfc_nci_open %s failed: %d", hal, ret);
+            ALOGE ("nfc_nci_open failed: %d", ret);
         }
     }
     else
-        ALOGE ("hw_get_module %s failed: %d", hal, ret);
+        ALOGE ("hw_get_module failed: %d", ret);
 
     if (ret == 0) {
         return new Nfc(nfc_device);