brcm47xx: mips74k: optimize kernel config

This saves abount 15 kB of compressed kernel size.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

SVN-Revision: 41043

target/linux/brcm47xx/mips74k/config-default

@@ -0,0 +1,10 @@
+# CONFIG_ADM6996_PHY is not set
+# CONFIG_BCM47XX_SSB is not set
+# CONFIG_FIXED_PHY is not set
+# CONFIG_SSB_DRIVER_EXTIF is not set
+# CONFIG_SSB_DRIVER_GIGE is not set
+# CONFIG_SSB_DRIVER_MIPS is not set
+# CONFIG_SSB_EMBEDDED is not set
+# CONFIG_SSB_PCICORE_HOSTMODE is not set
+# CONFIG_SSB_SERIAL is not set
+# CONFIG_SSB_SFLASH is not set