b43: implement baseband init for LP-PHY <= rev1

Implement baseband init for rev.0 and rev.1 LP PHYs. Convert boardflags_hi values to defines.
Implement b43_phy_copy for easier copying between registers, as needed by LP-PHY init.

Signed-off-by: Gábor Stefanik<netrolller.3d@gmail.com>
Cc: Michael Buesch<mb@bu3sch.de>
Cc: Larry Finger<larry.finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c
index be7b560..992318a 100644
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -137,7 +137,8 @@
 
 	b43_radio_mask(dev, B2055_MASTER1, 0xFFF3);
 	msleep(1);
-	if ((sprom->revision != 4) || !(sprom->boardflags_hi & 0x0002)) {
+	if ((sprom->revision != 4) ||
+	   !(sprom->boardflags_hi & B43_BFH_RSSIINV)) {
 		if ((binfo->vendor != PCI_VENDOR_ID_BROADCOM) ||
 		    (binfo->type != 0x46D) ||
 		    (binfo->rev < 0x41)) {