blue: move camera hacks to qcom-common

we will use these global cflags
-DQCOM_BSP_CAMERA_ABI_HACK
-DMR0_CAMERA_BLOB
in device/sony/common

the reason we needed our own gralloc_priv.h is
satisfied by the -DQCOM_BSP_CAMERA_ABI_HACK flag

PS2 : remove camera flags to be moved into qcom-common
PS3 : update commit message

Change-Id: I90d8303948e404f4a511229eb5e98cbb242f7714
Signed-off-by: ChampionSwimmer <android@championswimmer.tk>