[PATCH] zd1211rw: Add ID for Planex GW-US54GXS

This patch adds the ID for Planex GW-US54GXS USB wireless adapter sold in
Japan.
Since this device returns the regulatory region as 0x49,
the patch 'Allow channels 1-11 for unrecognised regulatory domains' is
required.

Tested by Masakazu Mokuno
zd1211b chip 2019:5303 v4810 high 00-90-cc AL2230_RF pa0 ---N-

Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>