GFX-Display: fix CTP PR1.0 brighness and suspend

GFX-Display: fix CTP PR1.0 brighness and suspend

BZ: 25004

1.After MIPI port enable and video mode timing working,
we are better use HS to send command.
in logic LP also should be ok in burst mode, however,
it is more difficlt to control. now chang to use HS.

2.for suspend case, also has the same problem
when video mode working, we need use HS to turn on/off panel,

3. we need enable GFX_RTPM if we want to suspend our display
controller, so we need open this flag for CTP

4. Don't reset the CMI MIPI panel when resuming.

Change-Id: Ia1252139e7cae16868ede534fe15b55d0a0dc769
Signed-off-by: Ke Ai <ke.ai@intel.com>
Signed-off-by: Austin Hu <austin.hu@intel.com>
Reviewed-on: http://android.intel.com:8080/36523
Reviewed-by: Kuppuswamy, Sathyanarayanan <sathyanarayanan.kuppuswamy@intel.com>
Reviewed-by: Xu, Randy <randy.xu@intel.com>
Tested-by: Tong, BoX <box.tong@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>