add missing Kconfig symbol

SVN-Revision: 15420

target/linux/ar71xx/config-2.6.28

@@ -233,6 +233,7 @@ CONFIG_SPI_BITBANG=y
 # CONFIG_SPI_GPIO_OLD is not set
 CONFIG_SPI_MASTER=y
 # CONFIG_SPI_SPIDEV is not set
+# CONFIG_SSB_DRIVER_MIPS is not set
 CONFIG_SSB_POSSIBLE=y
 CONFIG_SYSVIPC_SYSCTL=y
 CONFIG_SYS_HAS_CPU_MIPS32_R1=y

target/linux/ar71xx/config-2.6.29

@@ -240,6 +240,7 @@ CONFIG_SPI_BITBANG=y
 # CONFIG_SPI_GPIO_OLD is not set
 CONFIG_SPI_MASTER=y
 # CONFIG_SPI_SPIDEV is not set
+# CONFIG_SSB_DRIVER_MIPS is not set
 CONFIG_SSB_POSSIBLE=y
 CONFIG_SYSVIPC_SYSCTL=y
 CONFIG_SYS_HAS_CPU_MIPS32_R1=y