b43: N-PHY: fix infinite-loop-typo

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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 dfec549..e0f2d12 100644
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -2964,7 +2964,7 @@
 					(2 - i));
 		}
 
-		for (j = 0; i < 4; j++) {
+		for (j = 0; j < 4; j++) {
 			if (j < 3) {
 				cur_lna = lna[j];
 				cur_hpf1 = hpf1[j];