uhttpd: update to latest version, fixes an occasional crash on CGI scripts

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36034 3c298f89-4303-0410-b956-a3cf2f4a3e73
ath9k: fix issues with disabling rx/tx antennas

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36035 3c298f89-4303-0410-b956-a3cf2f4a3e73