b43: complete PHY reset

Use separated function for taking PHY out of reset and implement reset
for BCMA.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --cc drivers/net/wireless/b43/main.c
Simple merge

diff --cc drivers/net/wireless/b43/phy_common.c
Simple merge

diff --cc drivers/net/wireless/b43/phy_common.h
Simple merge