MLK-11694 ARM: dts: imx6x: add Murata BT ZP (bcm4339) module support

Add Murata BT ZP (bcm4339) module support on below platforms:
- i.MX6Q sabresd (SD2 slot) + Murata adapter V2.0 + ZP
- i.MX6DL sabresd (SD2 slot) + Murata adapter V2.0 + ZP
- i.MX6QP sabresd (SD2 slot) + Murata adapter V2.0 + ZP
- i.MX6SX sdb (SD3+SD2 slot) + Murata adapter V1.0 & SD EXT card + ZP
- i.MX6UL evk RevC (SD1 slot) + Murata adapter V2.0 + ZP

BT/Uart has some pin conflict with other modules, we set BT/Uart
as default, and add external dts for conflict modules. Test BT should
insert Murata adapter to i.MX6X board SDx slot to supply power.

Signed-off-by: Fugang Duan <B38611@freescale.com>