ixgbe: Convert some udelays to usleep_range

Convert some udelay calls to the preferred usleep_range.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
index 3f318c5..db759f9 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
@@ -1386,7 +1386,7 @@
 			status = 0;
 			break;
 		}
-		udelay(50);
+		usleep_range(50, 100);
 	}
 
 	if (i == timeout) {
@@ -1399,7 +1399,7 @@
 		 */
 		ixgbe_release_eeprom_semaphore(hw);
 
-		udelay(50);
+		usleep_range(50, 100);
 		/*
 		 * one last try
 		 * If the SMBI bit is 0 when we read it, then the bit will be
@@ -1427,7 +1427,7 @@
 			if (swsm & IXGBE_SWSM_SWESMBI)
 				break;
 
-			udelay(50);
+			usleep_range(50, 100);
 		}
 
 		/*