Use TARGET_ARCH_LOWMEM

Change-Id: Idc9116a693ca5a34e81b21bc988641cd4059dd5c
disable scissor optimization

Change-Id: I3ff41ff7ab31a6e8fc413e0238cc765f9fa0a3e1
Revert hidden apps limitation

Change-Id: I5ecc5367345d3df6adf02e1ab04d0170e206ae20