staging:rtl8192u: Rename variable State > state - Style

Rename the variable State to state, this clears the checkpatch issue
with CamelCase naming. The change is purely coding style and should
not impact runtime code execution.

Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>