add missing configuration symbol

SVN-Revision: 15856

target/linux/brcm63xx/config-2.6.27

@@ -188,6 +188,7 @@ CONFIG_SQUASHFS_EMBEDDED=y
 CONFIG_SQUASHFS_VMALLOC=y
 CONFIG_SSB=y
 CONFIG_SSB_B43_PCI_BRIDGE=y
+CONFIG_SSB_BLOCKIO=y
 CONFIG_SSB_DRIVER_PCICORE=y
 CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
 CONFIG_SSB_PCIHOST=y