MIPS: BMIPS: select CPU_SUPPORTS_HIGHMEM

All BMIPS CPUs support HIGHMEM, so it should be selected by CPU_BMIPS.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6242/

arch/mips/Kconfig

@@ -1392,6 +1392,7 @@ config CPU_BMIPS
 	select IRQ_CPU
 	select SWAP_IO_SPACE
 	select WEAK_ORDERING
+	select CPU_SUPPORTS_HIGHMEM
 	help
 	  Support for BMIPS3300/4350/4380 and BMIPS5000 processors.
 
@@ -1491,7 +1492,6 @@ config CPU_BMIPS4380
 
 config CPU_BMIPS5000
 	bool
-	select CPU_SUPPORTS_HIGHMEM
 	select MIPS_CPU_SCACHE
 	select SYS_SUPPORTS_SMP
 	select SYS_SUPPORTS_HOTPLUG_CPU