libstagefright: Fix DP Parsing issue with mpeg4 SP,ASP

- DP partition logic returns true for mpeg4 clips with SP ,ASP
  profiles.
- Fix the issue by parsing additional fields in the ESDS atom

CRs-fixed: 556619

Change-Id: I69c719011e1a0d2a0b0ae5a9b504b7cce443866b
libstagefright: Fix crash during seek

OMXCodec state is changed to EXECUTING when flush
is complete. Update assert condition to check
EXECUTING state instead of FLUSHING.

CRs-Fixed: 607762
Change-Id: I12b3eedfc83e00578d70af3ef903c5a26ccde3eb
Merge "libstagefright: Fix DP Parsing issue with mpeg4 SP,ASP" into android-4.4
Merge "libstagefright: Fix crash during seek" into android-4.4
Merge remote branch 'omni/android-4.4' into android-4.4