MIPS: kconfig: merge targets qemu_mips and qemu_mips64

Now the user can separately select the CPU type. Thus the
targets qemu_mips and qemu_mips64 can be merged to a single
target.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index b974e8f..4991da2 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -20,6 +20,8 @@
 	select SUPPORTS_LITTLE_ENDIAN
 	select SUPPORTS_CPU_MIPS32_R1
 	select SUPPORTS_CPU_MIPS32_R2
+	select SUPPORTS_CPU_MIPS64_R1
+	select SUPPORTS_CPU_MIPS64_R2
 
 config TARGET_MALTA
 	bool "Support malta"
@@ -47,12 +49,6 @@
 	select SUPPORTS_CPU_MIPS32_R1
 	select SUPPORTS_CPU_MIPS32_R2
 
-config TARGET_QEMU_MIPS64
-	bool "Support qemu-mips64"
-	select SUPPORTS_BIG_ENDIAN
-	select SUPPORTS_LITTLE_ENDIAN
-	select SUPPORTS_CPU_MIPS64_R1
-	select SUPPORTS_CPU_MIPS64_R2
 
 endchoice