brcm63xx: enable 6318 support

BCM6318 support is usable enough to be enabled by default, turn it on.

Signed-off-by: Florian Fainelli <[email protected]>

SVN-Revision: 39284

target/linux/brcm63xx/config-3.10

@@ -16,7 +16,7 @@ CONFIG_B53_SPI_DRIVER=y
 # CONFIG_B53_SRAB_DRIVER is not set
 CONFIG_BCM63XX=y
 CONFIG_BCM63XX_CPU_3368=y
-# CONFIG_BCM63XX_CPU_6318 is not set
+CONFIG_BCM63XX_CPU_6318=y
 # CONFIG_BCM63XX_CPU_63268 is not set
 CONFIG_BCM63XX_CPU_6328=y
 CONFIG_BCM63XX_CPU_6338=y