arm: toradex: Convert CONFIG_CONSOLE_MUX to Kconfig

This converts the following to Kconfig:
   CONFIG_CONSOLE_MUX

Cc: Igor Opaniuk <igor.opaniuk@toradex.com>
Signed-off-by: NTom Rini <trini@konsulko.com>
Reviewed-by: NIgor Opaniuk <igor.opaniuk@toradex.com>

configs/apalis_imx6_defconfig

@@ -19,8 +19,6 @@ CONFIG_DISTRO_DEFAULTS=y
 CONFIG_FIT=y
 CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/mach-imx/spl_sd.cfg,MX6Q"
 CONFIG_BOOTDELAY=1
-# CONFIG_CONSOLE_MUX is not set
-CONFIG_SYS_CONSOLE_IS_IN_ENV=y
 CONFIG_MISC_INIT_R=y
 CONFIG_VERSION_VARIABLE=y
 # CONFIG_DISPLAY_BOARDINFO is not set

configs/colibri_imx6_defconfig

@@ -18,8 +18,6 @@ CONFIG_DISTRO_DEFAULTS=y
 CONFIG_FIT=y
 CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/mach-imx/spl_sd.cfg,MX6DL"
 CONFIG_BOOTDELAY=1
-# CONFIG_CONSOLE_MUX is not set
-CONFIG_SYS_CONSOLE_IS_IN_ENV=y
 CONFIG_MISC_INIT_R=y
 CONFIG_VERSION_VARIABLE=y
 # CONFIG_DISPLAY_BOARDINFO is not set

include/configs/apalis_imx6.h

@@ -74,7 +74,6 @@
 #define CONFIG_BMP_16BPP
 #define CONFIG_VIDEO_LOGO
 #define CONFIG_VIDEO_BMP_LOGO
-#define CONFIG_CONSOLE_MUX
 #define CONFIG_IMX_HDMI
 #define CONFIG_IMX_VIDEO_SKIP
 

include/configs/colibri_imx6.h

@@ -62,7 +62,6 @@
 #define CONFIG_BMP_16BPP
 #define CONFIG_VIDEO_LOGO
 #define CONFIG_VIDEO_BMP_LOGO
-#define CONFIG_CONSOLE_MUX
 #define CONFIG_IMX_HDMI
 #define CONFIG_IMX_VIDEO_SKIP