dv: fix gxm dv bug [3/7]

dv: fix gxm dv bug [3/7]

PD#SWPL-13526

Problem:
1.watchdog reboot:
hdr_func->set_hdr_matrix is called
when disable dv, which leads to
access 38a0 illegally

2.no dolby_ctrl_backup and err
viu_misc_ctrl_backup lead to
green screen after disable dv

3.Switch resolution, display highlights
and some pixels are overexposed

4.First frame shift when playing video.

5.OSD jitter when play video

Solution:
1.Dont call hdr_vd1_off and hdr_osd_off for s912
2.dolby_ctrl_backup for s912 and update afbc bits
 for viu_misc_ctrl
3.Dont set core reg if regs no changed
4.It is hardware bug, need set run_mode_delay=3,
  that means the first three frames should be blank.
5.put osd_path_enable after enable_rgb_to_yuv_matrix_for_dvll

Verify:
Q201

Change-Id: I50440c5b3c6554c28f587c0542bea3773a2c9b9c
Signed-off-by: yao liu <yao.liu@amlogic.com>