MIPS: BCM47XX: select NO_EXCEPT_FILL

The kernel is loaded to 0x80001000 so there is some space left for the
exception handlers and the kernel do not have to reserve some extra
space for them.
Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Patchwork: http://patchwork.linux-mips.org/patch/4747/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

arch/mips/Kconfig

@@ -114,6 +114,7 @@ config BCM47XX
 	select FW_CFE
 	select HW_HAS_PCI
 	select IRQ_CPU
+	select NO_EXCEPT_FILL
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 	select SYS_HAS_EARLY_PRINTK