Add legacy Qualcomm OpenMAX support for MSM7x27

This is a combination of 4 commits.

Author: Alexey Shavykin <ganster0x29@gmail.com>
Date:   Sun Oct 28 22:46:34 2012 +0200
    Quick untested port of support legacy Qualcomm OMX OL libs

Author: Alexey Shavykin <ganster0x29@gmail.com>
Date:   Mon Oct 29 00:42:13 2012 +0200
    Replaced LOGI to ALOGI

Author: WinSuk <goodboy735@gmail.com>
Date:   Wed, 14 Nov 2012 23:03:24 -0800
    Fix the encoder

Author: Ganster41 <ganster0x29@gmail.com>
Date:   Mon Nov 19 15:35:36 2012 +0200
    Correct gralloc usage flags for renderer

Change-Id: I6c013873a0552269e906a1a2558493e826a2ce6a

Signed-off-by: Peter Gregus <pete.gregus@gmail.com>
Don't try to load libwvm.so

Change-Id: Ia6487205b81bc98fdb79ecde39288c27c854a19e

Signed-off-by: Peter Gregus <pete.gregus@gmail.com>
Fix thumbnail generation

Change-Id: If45c01df522421dd56e671cadba36675b83de011
Use ExtendedExtractor only if no suitable default extractors available for the source

Change-Id: I444cf365f1f99dac6f13751196a464fc54ce5929