generic-board: select SYS_GENERIC_BOARD for some architectures

We have done with the generic board conversion for all the boards
of ARC, Blackfin, M68000, MicroBlaze, MIPS, NIOS2, Sandbox, X86.

Let's select SYS_GENERIC_BOARD for those architectures, so we can
tell which architecture has finished the conversion at a glance.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Alexey Brodkin <abrodkin@synopsys.com>
diff --git a/arch/Kconfig b/arch/Kconfig
index cdd1662..ca617e7 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -1,6 +1,10 @@
 config HAVE_GENERIC_BOARD
 	bool
 
+config SYS_GENERIC_BOARD
+	bool
+	depends on HAVE_GENERIC_BOARD
+
 choice
 	prompt "Architecture select"
 	default SANDBOX
@@ -9,6 +13,7 @@
 	bool "ARC architecture"
 	select HAVE_PRIVATE_LIBGCC
 	select HAVE_GENERIC_BOARD
+	select SYS_GENERIC_BOARD
 
 config ARM
 	bool "ARM architecture"
@@ -23,20 +28,24 @@
 config BLACKFIN
 	bool "Blackfin architecture"
 	select HAVE_GENERIC_BOARD
+	select SYS_GENERIC_BOARD
 
 config M68K
 	bool "M68000 architecture"
 	select HAVE_GENERIC_BOARD
+	select SYS_GENERIC_BOARD
 
 config MICROBLAZE
 	bool "MicroBlaze architecture"
 	select HAVE_GENERIC_BOARD
+	select SYS_GENERIC_BOARD
 	select SUPPORT_OF_CONTROL
 
 config MIPS
 	bool "MIPS architecture"
 	select HAVE_PRIVATE_LIBGCC
 	select HAVE_GENERIC_BOARD
+	select SYS_GENERIC_BOARD
 
 config NDS32
 	bool "NDS32 architecture"
@@ -44,6 +53,7 @@
 config NIOS2
 	bool "Nios II architecture"
 	select HAVE_GENERIC_BOARD
+	select SYS_GENERIC_BOARD
 
 config OPENRISC
 	bool "OpenRISC architecture"
@@ -57,6 +67,7 @@
 config SANDBOX
 	bool "Sandbox"
 	select HAVE_GENERIC_BOARD
+	select SYS_GENERIC_BOARD
 	select SUPPORT_OF_CONTROL
 
 config SH
@@ -70,6 +81,7 @@
 	bool "x86 architecture"
 	select HAVE_PRIVATE_LIBGCC
 	select HAVE_GENERIC_BOARD
+	select SYS_GENERIC_BOARD
 	select SUPPORT_OF_CONTROL
 
 endchoice