MIPS: BCM47XX: select BOOT_RAW

All the boot loaders I have seen are booting the kernel in raw mode by
default. CFE seems to support elf kernel images too, but the default
case is raw for the devices I know of. Select this option to make the
kernel boot on most of the devices with the default options.
Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Patchwork: http://patchwork.linux-mips.org/patch/4746/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

arch/mips/Kconfig

@@ -107,6 +107,7 @@ config ATH79
 config BCM47XX
 	bool "Broadcom BCM47XX based boards"
 	select ARCH_WANT_OPTIONAL_GPIOLIB
+	select BOOT_RAW
 	select CEVT_R4K
 	select CSRC_R4K
 	select DMA_NONCOHERENT