sparc: move CONFIG_{LEON, LEON2, LEON3} to Kconfig

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Daniel Hellstrom <daniel@gaisler.com>

arch/sparc/Kconfig

@@ -4,17 +4,31 @@ menu "SPARC architecture"
 config SYS_ARCH
 	default "sparc"
 
+config LEON
+	bool
+
+config LEON2
+	bool
+	select LEON
+
+config LEON3
+	bool
+	select LEON
+
 choice
 	prompt "Board select"
 
 config TARGET_GRSIM_LEON2
 	bool "GRSIM simulating a LEON2 board"
+	select LEON2
 
 config TARGET_GR_CPCI_AX2000
 	bool "Gaisler GR-CPCI-AX2000 board"
+	select LEON3
 
 config TARGET_GR_EP2S60
 	bool "Gaisler Template design for Altera NIOS board with Stratix EP2S60"
+	select LEON3
 	help
 	  Gaisler Research AB's Template design (GPL Open Source SPARC/LEON3
 	  96MHz) for Altera NIOS Development board Stratix II edition,
@@ -22,9 +36,11 @@ config TARGET_GR_EP2S60
 
 config TARGET_GR_XC3S_1500
 	bool "Gaisler GR-XC3S-1500 spartan board"
+	select LEON3
 
 config TARGET_GRSIM
 	bool "GRSIM simulating a LEON3 GR-XC3S-1500 board"
+	select LEON3
 
 endchoice
 

arch/sparc/cpu/leon2/config.mk

@@ -6,5 +6,3 @@
 #
 
 PLATFORM_RELFLAGS += -fPIC
-
-PLATFORM_CPPFLAGS += -DCONFIG_LEON -DCONFIG_LEON2

arch/sparc/cpu/leon3/config.mk

@@ -6,5 +6,3 @@
 #
 
 PLATFORM_RELFLAGS += -fPIC
-
-PLATFORM_CPPFLAGS += -DCONFIG_LEON -DCONFIG_LEON3