kernel: add some missing config options for kernel 3.9


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36097 3c298f89-4303-0410-b956-a3cf2f4a3e73
kernel: add some fixes for kernel 3.9

This patch fixes some compile problems with kernel 3.9 and adds some missing linux 3.9 handling into kernel packages.


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36098 3c298f89-4303-0410-b956-a3cf2f4a3e73