b43: Convert usage of b43_phy_set()

This patch converts code to use the new b43_phy_set() API.

The semantic patch that makes this change is as follows:

// <smpl>
@@
expression dev, addr, set;
@@

-b43_phy_write(dev, addr, b43_phy_read(dev, addr) | set);
+b43_phy_set(dev, addr, set);
// </smpl>

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