[ARM] pxa: add iWMMXt support for pxa168

Signed-off-by: NEric Miao <eric.miao@marvell.com>

arch/arm/Kconfig

@@ -712,8 +712,8 @@ source arch/arm/mm/Kconfig
 
 config IWMMXT
 	bool "Enable iWMMXt support"
-	depends on CPU_XSCALE || CPU_XSC3
-	default y if PXA27x || PXA3xx
+	depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
+	default y if PXA27x || PXA3xx || ARCH_MMP
 	help
 	  Enable support for iWMMXt context switching at run time if
 	  running on a CPU that supports it.

arch/arm/kernel/Makefile

@@ -36,6 +36,7 @@ AFLAGS_crunch-bits.o		:= -Wa,-mcpu=ep9312
 
 obj-$(CONFIG_CPU_XSCALE)	+= xscale-cp0.o
 obj-$(CONFIG_CPU_XSC3)		+= xscale-cp0.o
+obj-$(CONFIG_CPU_MOHAWK)	+= xscale-cp0.o
 obj-$(CONFIG_IWMMXT)		+= iwmmxt.o
 AFLAGS_iwmmxt.o			:= -Wa,-mcpu=iwmmxt