remove jni.h include from IOMX.h
remove jni.h include from IOMX.h

jni.h is not used in IOMX.h and is not available in pdk builds,
remove it.

Change-Id: I9bc8fd70f617942712d9f684c6fc927bf18be753

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