ANDROID: gki_defconfig: enable CONFIG_QCOM_{COMMAND_DB,RPMH,PDC}

CONFIG_ARCH_QCOM is a dependency of the above and selects
CONFIG_{PINCTRL, REGULATOR, TMPFS}.

Bug: 133441279
Bug: 133441092
Bug: 133440650
Change-Id: I22c37946ec3a62ccbd3fa65bbc09076964d86475
Signed-off-by: Tri Vo <trong@google.com>