Initialize pointer members to NULL to avoid illegal reference

mBitmap and mTexture is not initialized to NULL which causes
illegal address access when it fails to be created from
oversized bitmap.
Cherry-picked from AOSP: https://android-review.googlesource.com/#/c/79320/

Change-Id: Iea54bec8788bc5f3a10040fdb43f416c0d41a14c
Fix a variety of small publicly-reported bugs.

Possible NULL dereference in cmds/bootanimation/BootAnimation.cpp.
https://code.google.com/p/android/issues/detail?id=61556

Missing fclose in core/jni/android_os_Debug.cpp.
https://code.google.com/p/android/issues/detail?id=61546

Bad loop guards in core/jni/android_util_Process.cpp.
https://code.google.com/p/android/issues/detail?id=61557

Assignment to wrong variable in libs/androidfw/AssetManager.cpp.
https://code.google.com/p/android/issues/detail?id=61560

Missing delete[]s in libs/androidfw/ObbFile.cpp.
https://code.google.com/p/android/issues/detail?id=61549

Leaks on error in tools/aapt/Images.cpp.
https://code.google.com/p/android/issues/detail?id=61552

Two missing fclose calls in tools/aapt/Resource.cpp.
https://code.google.com/p/android/issues/detail?id=61553

Missing fclose in tools/aidl/aidl.cpp.
https://code.google.com/p/android/issues/detail?id=61554

Change-Id: I5820f3824e72d07a9acb776cf0af3e7443f5694a