staging: r8192ee: fix coccinelle warnings

drivers/staging/rtl8192ee/btcoexist/halbtc8821a2ant.c:2491:3-4: Unneeded semicolon

 Removes unneeded semicolon.

Generated by: /kbuild/src/linux/scripts/coccinelle/misc/semicolon.cocci

CC: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>