bluetooth: update bluetooth-power platform data

Update bluetooth power driver to support both device tree and
board specific platform data to power on bluetooth chipset.

Current driver supports only gpio data from the device node.
Now the driver first checks for device tree node and if it
does not exist then checks for the platform data from the
board file.

Updated the platform data for the driver to provide all the
required vregs and gpio data to power on the bluetooth
chipset.

Change-Id: Ie71115ad7173fc527e46b334a8b548762b40aa46
Signed-off-by: Ram Mohan Korukonda <rkorukon@codeaurora.org>
Signed-off-by: Sungjun Park <sjpark@codeaurora.org>
bluetooth: Add ROME powerup sequence

Have place holder for configuring the BT voltage regulators.
GPIO17 corresponds to BT_EN signal on the BT Chipset.
The host software has to pull this line down in order to bring
BT module out of reset.

Change-Id: Ib9887dc4240ae16e82028dde0851a0e43d9ef16b
Signed-off-by: Anantha Krishnan <ananthk@codeaurora.org>

Conflicts:
	arch/arm/mach-msm/board-8064.c
	arch/arm/mach-msm/board-8064.h
Config Update. (BT)