mx6sxsabresd: Convert to the new Kconfig style

mx6sxsabresd was not in the master branch when the conversion to the new Kconfig
style happened, so convert it now so that it can build again.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>

arch/arm/Kconfig

@@ -527,6 +527,9 @@ config TARGET_MX6SABRESD
 config TARGET_MX6SLEVK
 	bool "Support mx6slevk"
 
+config TARGET_MX6SXSABRESD
+	bool "Support mx6sxsabresd"
+
 config TARGET_GW_VENTANA
 	bool "Support gw_ventana"
 
@@ -884,6 +887,7 @@ source "board/freescale/mx6qarm2/Kconfig"
 source "board/freescale/mx6qsabreauto/Kconfig"
 source "board/freescale/mx6sabresd/Kconfig"
 source "board/freescale/mx6slevk/Kconfig"
+source "board/freescale/mx6sxsabresd/Kconfig"
 source "board/freescale/vf610twr/Kconfig"
 source "board/gateworks/gw_ventana/Kconfig"
 source "board/genesi/mx51_efikamx/Kconfig"

board/freescale/mx6sxsabresd/Kconfig

+if TARGET_MX6SXSABRESD
+
+config SYS_CPU
+	string
+	default "armv7"
+
+config SYS_BOARD
+	string
+	default "mx6sxsabresd"
+
+config SYS_VENDOR
+	string
+	default "freescale"
+
+config SYS_SOC
+	string
+	default "mx6"
+
+config SYS_CONFIG_NAME
+	string
+	default "mx6sxsabresd"
+
+endif

board/freescale/mx6sxsabresd/MAINTAINERS

+MX6SXSABRESD BOARD
+M:	Fabio Estevam <fabio.estevam@freescale.com>
+S:	Maintained
+F:	board/freescale/mx6sxsabresd/
+F:	include/configs/mx6sxsabresd.h
+F:	configs/mx6sxsabresd_defconfig

configs/mx6sxsabresd_defconfig

+CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/freescale/mx6sxsabresd/imximage.cfg,MX6SX"
+CONFIG_ARM=y
+CONFIG_TARGET_MX6SXSABRESD=y