Disable HomogeneousSpaceCompact for GSS collector

HomogeneousSpaceCompact is not suitable when GSS is forground collector.
This will fix issue that device can not boot with GSS collecor.

Change-Id: Iafdf431c207351571f41bbc9196dff02ba674ab4
Signed-off-by: Lin Zang <lin.zang@intel.com>
Merge "Disable HomogeneousSpaceCompact for GSS collector"