1. Reopen bEnableRDPowIsland since it doesn't appear splash screen when click the drawerbutton.
2. Remove hGPUUtilLock to avoid dead lock.
3. Get raw ion_device by IonDevAcquire.
4. Merge 1.5_ED3830101 DDK code.
Change-Id: I9b8cef3ddf13dac65663827b88609bfab812e573
Signed-off-by: zxl <zhuangxl@rock-chips.com>