ARM: socfpga: Add socfpga Ethernet filter attributes entries

This patch adds socfpga Ethernet filter attributes for multicast
and unicast filters per Synopsys Ethernet IP configuration chosen
by Altera for the Cyclone 5 and Arria SOC FPGAs.
Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

arch/arm/boot/dts/socfpga.dtsi

@@ -486,6 +486,8 @@ gmac0: ethernet@ff700000 {
 			clock-names = "stmmaceth";
 			resets = <&rst EMAC0_RESET>;
 			reset-names = "stmmaceth";
+			snps,multicast-filter-bins = <256>;
+			snps,perfect-filter-entries = <128>;
 			status = "disabled";
 		};
 
@@ -500,6 +502,8 @@ gmac1: ethernet@ff702000 {
 			clock-names = "stmmaceth";
 			resets = <&rst EMAC1_RESET>;
 			reset-names = "stmmaceth";
+			snps,multicast-filter-bins = <256>;
+			snps,perfect-filter-entries = <128>;
 			status = "disabled";
 		};