sunxi: kconfig : Make CHIP_DIP_SCAN depend on ARCH_SUNXI

The CHIP_DIP_SCAN configuration option
is relevant only to ARCH_SUNXI.
Make CHIP_DIP_SCAN dependent
on ARCH_SUNXI so that it does not show up on other goals.

Signed-off-by: Liya Huang <1425075683@qq.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
index ba1b154..cc28f40 100644
--- a/arch/arm/mach-sunxi/Kconfig
+++ b/arch/arm/mach-sunxi/Kconfig
@@ -1131,10 +1131,6 @@
 	  The used address is "bdaddr" if set, and "ethaddr" with the LSB
 	  flipped elsewise.
 
-source "board/sunxi/Kconfig"
-
-endif
-
 config CHIP_DIP_SCAN
 	bool "Enable DIPs detection for CHIP board"
 	select SUPPORT_EXTENSION_SCAN
@@ -1143,3 +1139,7 @@
 	select W1_EEPROM
 	select W1_EEPROM_DS24XXX
 	select CMD_EXTENSION
+
+source "board/sunxi/Kconfig"
+
+endif