x86: Move mrst to platform

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jacob Pan <jacob.jun.pan@intel.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>

arch/x86/kernel/Makefile

@@ -104,7 +104,6 @@ obj-$(CONFIG_PCSPKR_PLATFORM)	+= pcspeaker.o
 obj-$(CONFIG_OLPC)		+= olpc.o
 obj-$(CONFIG_OLPC_XO1)		+= olpc-xo1.o
 obj-$(CONFIG_OLPC_OPENFIRMWARE)	+= olpc_ofw.o
-obj-$(CONFIG_X86_MRST)		+= mrst.o
 
 microcode-y				:= microcode_core.o
 microcode-$(CONFIG_MICROCODE_INTEL)	+= microcode_intel.o

arch/x86/platform/Makefile

@@ -1,5 +1,6 @@
 # Platform specific code goes here
 obj-y	+= efi/
+obj-y	+= mrst/
 obj-y	+= scx200/
 obj-y	+= sfi/
 obj-y	+= visws/

arch/x86/platform/mrst/Makefile

@@ -0,0 +1 @@
+obj-$(CONFIG_X86_MRST)		+= mrst.o