b43: LP-PHY: Implement channel switching for rev0/1/B2062 radio

-Move pdiv from lpphy_2062_init to struct b43_phy_lp.
-Add channel table for the B2062 radio.
-Add code for tuning the B2062 radio to channel.
-Add error handling to op_switch_channel, and use it for both radios.

Rev0/1/B2062 will now hopefully show some signs of life, though
it won't work at full performance, as calibration is still missing.

Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/b43/phy_lp.h

@@ -884,6 +884,8 @@ struct b43_phy_lp {
 
 	/* Used for "Save/Restore Dig Filt State" */
 	u16 dig_flt_state[9];
+
+	unsigned int pdiv;
 };
 
 enum tssi_mux_mode {