Gfx-Display: Enhance DDC to read extention block in EDID

Gfx-Display: Enhance DDC to read extention block in EDID

BZ: 17008

Replacing late_initcall with device_initcall for I2C GPIO driver init, to
resolve the I2C adapter detection issue for HDMI.

Change-Id: Ia14c923ef855c4de1242b753fe9c08fc2d1875f6
Signed-off-by: Lei Zhang <lei.zhang@intel.com>
Signed-off-by: Tong Bo <box.tong@intel.com>
Reviewed-on: http://android.intel.com:8080/27744
Reviewed-by: Hu, Austin <austin.hu@intel.com>
Reviewed-by: Xu, Randy <randy.xu@intel.com>
Tested-by: Xu, Randy <randy.xu@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>