b43: fix support for 5 GHz only BCM43228 model
b43: fix support for 5 GHz only BCM43228 model

It was incorrectly detected as 2 GHz device.

Signed-off-by: Rafał Miłecki <dced371c11179e2cb83b1e305b9d7b15f379452b@gmail.com>
Cc: 4fbacc2fa0ffdbb11bf1ad6925b886ebd08dd15f@vger.kernel.org # 3.17+
Signed-off-by: Kalle Valo <7081a7d99b8c74c0698a728df19e3915a995d7e1@codeaurora.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs