Replace vendor specific NfcGoogle.apk with generic Nfc.apk

The access control changes allow us to just use Nfc.apk with
the regular platform certificate, instead of the custom signed
NfcGoogle.apk. So we can compeltely get rid of vendor/google/apps/NfcGoogle
and just build it out of packages/apps/Nfc now.

The package name is also reverted from com.android.nfc3 to com.android.nfc

The NFC uid needs to get bumped (25 to 27) to allow the cert change.

Bug: 5608249
Change-Id: I09a81a896ff3cceb5a8de331d3399921b870932a

Author: Nick Pelly

core/java/android/os/Process.java

@@ -101,7 +101,7 @@ public class Process {
      * Defines the UID/GID for the NFC service process.
      * @hide
      */
-    public static final int NFC_UID = 1025;
+    public static final int NFC_UID = 1027;
 
     /**
      * Defines the GID for the group that allows write access to the internal media storage.