wcnss: add pm_qos support to prevent power collapse for BIMC

Add pm_qos support to prevent power collapse of BIMC during
SSR and coldboot. Wakelock is also taken to prevent power
collapse of BIMC

CRs-Fixed: 727070
Change-Id: Ida638e85995735b629ad455dd48df996b37c2305
Signed-off-by: Siddharth Bhal <sbhal@codeaurora.org>
wcnss: dump apb2phy_status register on subsystem restart

apb2phy_status register is required for debugging certain
issues due to watchdog bite on the wcn chip. Dump the
register when watchdog bite occurs on the wcn subsystem
or the subsystem is going for a restart for any other
reason.

Change-Id: I90851d023dff5c62d66a9855fff9b16d244f5190
CRs-Fixed: 631088
Signed-off-by: Mihir Shete <smihir@codeaurora.org>