avr32: move CONFIG_SYS_GENERIC_BOARD to Kconfig

Now all the AVR32 boards have been converted into Generic Board.
Select it in Kconfig and clean up defines in header files.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Andreas Bießmann <andreas.devel@googlemail.com>

arch/Kconfig

@@ -25,6 +25,7 @@ config ARM
 config AVR32
 	bool "AVR32 architecture"
 	select HAVE_GENERIC_BOARD
+	select SYS_GENERIC_BOARD
 
 config BLACKFIN
 	bool "Blackfin architecture"

include/configs/atngw100.h

@@ -14,7 +14,6 @@
 #define CONFIG_AT32AP7000
 #define CONFIG_ATNGW100
 
-#define CONFIG_SYS_GENERIC_BOARD
 #define CONFIG_BOARD_EARLY_INIT_F
 #define CONFIG_BOARD_EARLY_INIT_R
 

include/configs/atngw100mkii.h

@@ -16,7 +16,6 @@
 #define CONFIG_AT32AP7000
 #define CONFIG_ATNGW100MKII
 
-#define CONFIG_SYS_GENERIC_BOARD
 #define CONFIG_BOARD_EARLY_INIT_F
 #define CONFIG_BOARD_EARLY_INIT_R
 

include/configs/atstk1002.h

@@ -95,7 +95,6 @@
 #define CONFIG_BOOTP_GATEWAY
 
 /* generic board */
-#define CONFIG_SYS_GENERIC_BOARD
 #define CONFIG_BOARD_EARLY_INIT_F
 #define CONFIG_BOARD_EARLY_INIT_R
 

include/configs/grasshopper.h

@@ -62,7 +62,6 @@
 #define CONFIG_USART_BASE		ATMEL_BASE_USART1
 #define CONFIG_USART_ID			1
 
-#define CONFIG_SYS_GENERIC_BOARD
 #define CONFIG_BOARD_EARLY_INIT_F
 #define CONFIG_BOARD_EARLY_INIT_R