net: atlantic: Remove unneeded semicolon

Fixes coccicheck warning:

drivers/net/ethernet/aquantia/atlantic/aq_macsec.c:404:2-3: Unneeded semicolon
drivers/net/ethernet/aquantia/atlantic/aq_macsec.c:420:2-3: Unneeded semicolon
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
Acked-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/aquantia/atlantic/aq_macsec.c

@@ -401,7 +401,7 @@ static u32 aq_sc_idx_max(const enum aq_macsec_sc_sa sc_sa)
 		break;
 	default:
 		break;
-	};
+	}
 
 	return result;
 }
@@ -417,7 +417,7 @@ static u32 aq_to_hw_sc_idx(const u32 sc_idx, const enum aq_macsec_sc_sa sc_sa)
 		return sc_idx;
 	default:
 		WARN_ONCE(true, "Invalid sc_sa");
-	};
+	}
 
 	return sc_idx;
 }