tbs2910: fix Kconfig

fix Kconfig for tbs2910 board to prevent crash on relocation

Signed-off-by: Soeren Moch <smoch@web.de>

arch/arm/Kconfig

@@ -650,6 +650,7 @@ config TARGET_KOSAGI_NOVENA
 
 config TARGET_TBS2910
 	bool "Support tbs2910"
+	select CPU_V7
 
 config TARGET_TQMA6
 	bool "TQ Systems TQMa6 board"

board/tbs/tbs2910/Kconfig

 if TARGET_TBS2910
 
-config SYS_CPU
-	string
-	default "armv7"
-
 config SYS_BOARD
-	string
 	default "tbs2910"
 
 config SYS_VENDOR
-	string
 	default "tbs"
 
 config SYS_SOC
-	string
 	default "mx6"
 
 config SYS_CONFIG_NAME
-	string
 	default "tbs2910"
 
 endif