arm: mx6: tqma6: CPU type selection via Kconfig

This is the first patch to remove the
CONFIG_SYS_EXTRA_OPTIONS.

This patch implements CPU type selection from Kconfig.
Further Kconfig stuff is added later.

Signed-off-by: Markus Niebel <Markus.Niebel@tq-group.com>
diff --git a/arch/arm/cpu/armv7/mx6/Kconfig b/arch/arm/cpu/armv7/mx6/Kconfig
index 1282be3..10908c4 100644
--- a/arch/arm/cpu/armv7/mx6/Kconfig
+++ b/arch/arm/cpu/armv7/mx6/Kconfig
@@ -33,11 +33,16 @@
 	bool "Support secomx6 boards"
 	select CPU_V7
 
+config TARGET_TQMA6
+	bool "TQ Systems TQMa6 board"
+	select CPU_V7
+
 endchoice
 
 config SYS_SOC
 	default "mx6"
 
 source "board/seco/Kconfig"
+source "board/tqc/tqma6/Kconfig"
 
 endif