b43: Do radio lock assertion in software

The assertion of the lock-bit in the hardware register is unreliable,
because there are devices with quirks that will randomly set the bit.

Do the assertion in software, only.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
3 files changed