Fixed invalid reference to native_app_glue from libfplutil.
Fixed invalid reference to native_app_glue from libfplutil.

Came across this when trying to import libfplutil from another NDK module.

Tested:
Verified that it's possible to build a very simple application (hello world)
that links against libfplutil on Android using ndk-build.

Change-Id: I9620f5c1335ac9bc17ed812cdbeacbbc0b13862d

google/fplutil,google/fplutil,google/fplutil,google/fplutil,google/fplutil,google/fplutil