ar71xx/ar933x_wmac_reset: remove indefinite wait for wmac reset

Found-by: Coverity Scan #1329327
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>

target/linux/ar71xx/patches-4.4/200-MIPS-ath79-fix-ar933x-wmac-reset.patch

@@ -1,6 +1,6 @@
 --- a/arch/mips/ath79/dev-wmac.c
 +++ b/arch/mips/ath79/dev-wmac.c
-@@ -62,10 +62,27 @@ static void __init ar913x_wmac_setup(voi
+@@ -61,10 +61,27 @@ static void __init ar913x_wmac_setup(voi
  
  static int ar933x_wmac_reset(void)
  {
@@ -21,7 +21,6 @@
 +			break;
 +
 +		udelay(10000);
-+		retries++;
 +	}
 +
 +	pr_err("ar933x: WMAC reset timed out");