Upstream 3.0.90 -> 3.0.91

https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/log/?h=linux-3.0.y
Fix wifi problem on kernel 3.0.91
Remove commit c63eea737793f3562cc62d1395b6b1d325804d27 (https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?h=linux-3.0.y&id=c63eea737793f3562cc62d1395b6b1d325804d27)
for fixing wifi problem on kernel 3.0.91