MIPS: target architecture variants select the appropriate CPU ISA

Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

arch/Config.in.mips

@@ -26,21 +26,27 @@ choice
 config BR2_mips_32
 	bool "mips 32"
 	depends on !BR2_ARCH_IS_64
+	select BR2_MIPS_CPU_MIPS32
 config BR2_mips_32r2
 	bool "mips 32r2"
 	depends on !BR2_ARCH_IS_64
+	select BR2_MIPS_CPU_MIPS32R2
 config BR2_mips_32r6
 	bool "mips 32r6"
 	depends on !BR2_ARCH_IS_64
+	select BR2_MIPS_CPU_MIPS32R6
 config BR2_mips_64
 	bool "mips 64"
 	depends on BR2_ARCH_IS_64
+	select BR2_MIPS_CPU_MIPS64
 config BR2_mips_64r2
 	bool "mips 64r2"
 	depends on BR2_ARCH_IS_64
+	select BR2_MIPS_CPU_MIPS64R2
 config BR2_mips_64r6
 	bool "mips 64r6"
 	depends on BR2_ARCH_IS_64
+	select BR2_MIPS_CPU_MIPS64R6
 endchoice