MIPS: kconfig: globally define CONFIG_SYS_CPU for MIPS

Now the user can select the CPU type for each target. Thus
CONFIG_SYS_CPU could be set globally.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>

arch/mips/Kconfig

@@ -4,6 +4,10 @@ menu "MIPS architecture"
 config SYS_ARCH
 	default "mips"
 
+config SYS_CPU
+	default "mips32" if CPU_MIPS32_R1 || CPU_MIPS32_R2
+	default "mips64" if CPU_MIPS64_R1 || CPU_MIPS64_R2
+
 config USE_PRIVATE_LIBGCC
 	default y
 

board/dbau1x00/Kconfig

 if TARGET_DBAU1X00
 
-config SYS_CPU
-	default "mips32"
-
 config SYS_BOARD
 	default "dbau1x00"
 

board/imgtec/malta/Kconfig

 if TARGET_MALTA
 
-config SYS_CPU
-	default "mips32"
-
 config SYS_BOARD
 	default "malta"
 

board/micronas/vct/Kconfig

 if TARGET_VCT
 
-config SYS_CPU
-	default "mips32"
-
 config SYS_BOARD
 	default "vct"
 

board/pb1x00/Kconfig

 if TARGET_PB1X00
 
-config SYS_CPU
-	default "mips32"
-
 config SYS_BOARD
 	default "pb1x00"
 

board/qemu-mips/Kconfig

 if TARGET_QEMU_MIPS
 
-config SYS_CPU
-	default "mips32"
-
 config SYS_BOARD
 	default "qemu-mips"