move ISA configuration to better place

Config.in

@@ -26,7 +26,6 @@ source "target/config/Config.in.arch"
 source "target/config/Config.in.system"
 source "target/config/Config.in.subsystem"
 source "target/config/Config.in.tc"
-source "target/config/Config.in.mips"
 source "target/config/Config.in.xtensa"
 source "target/config/Config.in.qemu"
 source "target/config/Config.in.qemuopts"
@@ -110,6 +109,7 @@ config ADK_VENDOR
 	  Vendor string is used for toolchain.
 
 source "target/config/Config.in.endian"
+source "target/config/Config.in.mips"
 source "target/config/Config.in.fpu"
 source "target/config/Config.in.float"
 source "target/config/Config.in.binfmt"

target/config/Config.in.mips.choice

@@ -2,7 +2,7 @@
 # material, please see the LICENCE file in the top-level directory.
 
 choice ADK_TARGET_MIPS_CPU_ARCH
-prompt "MIPS ISA"
+prompt "ISA configuration"
 depends on ADK_TARGET_ARCH_MIPS
 
 config ADK_CPU_MIPS_MIPS32

target/config/Config.in.subsystem

@@ -51,5 +51,3 @@ config ADK_TARGET_HUMMINGBOARD_I2EX
 	select ADK_TARGET_WITH_SATA
 
 endchoice
-
-