rfkill: Fix compilation when PM is disabled

Add config macros for RFKILL_PM to fix compilation when
CONFIG_PM is disabled

Change-Id: I9fba48fb02d671885665354091101f3813426f57
Signed-off-by: Chintan Pandya <cpandya@codeaurora.org>
Signed-off-by: Nathan Chan <e334cn@gmail.com>
configs: lexikon: build CFG80211

Change-Id: I75083929282e65df52ed57f04714a8a5db7e2890