SurfaceTexture: detach from Dalvik when necessary.
SurfaceTexture: detach from Dalvik when necessary.

This change adds a call to detach from the Davlik VM in SurfaceTexture
JNI calls that caused an attach.

Change-Id: I8e0d7d596680bd25ac42f8db4ca8343a62827255

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base