kernel: add some missing config symbols

Signed-off-by: Florian Fainelli <florian@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt@37710 3c298f89-4303-0410-b956-a3cf2f4a3e73
mac80211: rtlwifi depends on PCI or USB support in the Kconfig file

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>


git-svn-id: svn://svn.openwrt.org/openwrt@37711 3c298f89-4303-0410-b956-a3cf2f4a3e73