ENGR00225875-1 i.MX6Q/Solo SabreAuto Infineon Bluetooth uart3 config

ENGR00225875-1 i.MX6Q/Solo SabreAuto Infineon Bluetooth uart3 config

Configure MUX settings for bluetooth operation over UART3.
Enable RTS,CTS and DMA only for uart3.
Affected files :
arch/arm/mach-mx6/board-mx6q_sabreauto.c
arch/arm/mach-mx6/board-mx6q_sabreauto.h
arch/arm/mach-mx6/board-mx6solo_sabreauto.h
arch/arm/plat-mxc/include/mach/iomux-mx6q.h
On behalf of Francisco Munoz <francisco.munoz@freescale.com>.
Some modification are needed also on hciattach tool.

Signed-off-by: Israel Perez <B37753@freescale.com>