e1000e: normalize usage of serdes_has_link

Cosmetic change to use struct e1000_mac_info.serdes_has_link
consistently as the 'bool' that it's declared as.

No functional change.

Signed-off-by: Alex Chiang <achiang@hp.com>
Acked-by: Jeff Kirsher <Jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/e1000e/lib.c b/drivers/net/e1000e/lib.c
index 6674110..ac2f34e 100644
--- a/drivers/net/e1000e/lib.c
+++ b/drivers/net/e1000e/lib.c
@@ -501,7 +501,7 @@
 		ew32(TXCW, mac->txcw);
 		ew32(CTRL, (ctrl & ~E1000_CTRL_SLU));
 
-		mac->serdes_has_link = 1;
+		mac->serdes_has_link = true;
 	}
 
 	return 0;
@@ -566,7 +566,7 @@
 		ew32(TXCW, mac->txcw);
 		ew32(CTRL, (ctrl & ~E1000_CTRL_SLU));
 
-		mac->serdes_has_link = 1;
+		mac->serdes_has_link = true;
 	} else if (!(E1000_TXCW_ANE & er32(TXCW))) {
 		/*
 		 * If we force link for non-auto-negotiation switch, check