p970: update flags according to latest changes

*) we have sync framework now
*) select BGRA_8888 flag
*) use correct SYSTEMUI_PBSIZE_HACK flag
*) use correct WORKAROUND_BUG_10194508 flag

Change-Id: Ib508d4375b8443627f44cffbbb704811866a777b
update fstab

Change-Id: I03a408adaf4eb7a7bd743806341401254242a3bd