sisfb: move XGI POST DDR2 bootup code into subroutines
sisfb: move XGI POST DDR2 bootup code into subroutines

Move DDR2 register setting code into separate subroutines. No changes
in functionality.

Signed-off-by: Aaro Koskinen <13423a3f3006b5859cfceae66d59451f5eb4e205@iki.fi>
Cc: Thomas Winischhofer <5f50a84c1fa3bcff146405017f36aec1a10a9e38@winischhofer.net>
Signed-off-by: Paul Mundt <38b52dbb5f0b63d149982b6c5de788ec93a89032@linux-sh.org>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas