ENGR00216010-1: gpc: Add missing display_pup_req config after system resumes

ENGR00216010-1: gpc: Add missing display_pup_req config after system resumes

There's only DISPLAY power down request setting before system suspends,
but without the paired DISPLAY power up request setting after resume.
This will cause ePxP/EPDC/SPDC module nonfunctional because the modules
will be powered down once pdn_req is asserted but not powered up again.

With this patch, ePxP/EPDC/SPDC survived (need reinitialize each, however)
on resume.

Signed-off-by: Robby Cai <R63905@freescale.com>