Convert CONFIG_ARCH_MAP_SYSMEM to Kconfig

This converts the following to Kconfig:
   CONFIG_ARCH_MAP_SYSMEM
Signed-off-by: NTom Rini <trini@konsulko.com>

arch/Kconfig

+config ARCH_MAP_SYSMEM
+	depends on SANDBOX || NDS32
+	def_bool y
+
 config CREATE_ARCH_SYMLINK
 	bool
 

arch/sandbox/Kconfig

 menu "Sandbox architecture"
 	depends on SANDBOX
 
-config ARCH_MAP_SYSMEM
-	def_bool y
-
 config SYS_ARCH
 	default "sandbox"
 

include/configs/adp-ae3xx.h

@@ -17,8 +17,6 @@
 
 #define CONFIG_SKIP_TRUNOFF_WATCHDOG
 
-#define CONFIG_ARCH_MAP_SYSMEM
-
 #define CONFIG_BOOTP_SERVERIP
 
 #ifdef CONFIG_SKIP_LOWLEVEL_INIT

include/configs/adp-ag101p.h

@@ -15,8 +15,6 @@
  */
 #define CONFIG_USE_INTERRUPT
 
-#define CONFIG_ARCH_MAP_SYSMEM
-
 #define CONFIG_BOOTP_SERVERIP
 
 #ifndef CONFIG_SKIP_LOWLEVEL_INIT