armv7: dts: ls1021a: Remove aliases property name warning

Remove aliases property name warning while compilation:
Warning (alias_paths): /aliases: aliases property name must
include only lowercase and '-'

Signed-off-by: Rajesh Bhagat <rajesh.bhagat@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/arch/arm/dts/ls1021a-iot.dtsi b/arch/arm/dts/ls1021a-iot.dtsi
index 3371b9f..d27b601 100644
--- a/arch/arm/dts/ls1021a-iot.dtsi
+++ b/arch/arm/dts/ls1021a-iot.dtsi
@@ -12,9 +12,9 @@
 	model = "LS1021A IOT Board";
 
 	aliases {
-		enet2_rgmii_phy = &rgmii_phy1;
-		enet0_sgmii_phy = &sgmii_phy2;
-		enet1_sgmii_phy = &sgmii_phy0;
+		enet2-rgmii-phy = &rgmii_phy1;
+		enet0-sgmii-phy = &sgmii_phy2;
+		enet1-sgmii-phy = &sgmii_phy0;
 		spi0 = &qspi;
 		spi1 = &dspi1;
 	};
diff --git a/arch/arm/dts/ls1021a-qds.dtsi b/arch/arm/dts/ls1021a-qds.dtsi
index 47c128f..f7783e5 100644
--- a/arch/arm/dts/ls1021a-qds.dtsi
+++ b/arch/arm/dts/ls1021a-qds.dtsi
@@ -11,11 +11,11 @@
 	model = "LS1021A QDS Board";
 
 	aliases {
-		enet0_rgmii_phy = &rgmii_phy1;
-		enet1_rgmii_phy = &rgmii_phy2;
-		enet2_rgmii_phy = &rgmii_phy3;
-		enet0_sgmii_phy = &sgmii_phy1c;
-		enet1_sgmii_phy = &sgmii_phy1d;
+		enet0-rgmii-phy = &rgmii_phy1;
+		enet1-rgmii-phy = &rgmii_phy2;
+		enet2-rgmii-phy = &rgmii_phy3;
+		enet0-sgmii-phy = &sgmii_phy1c;
+		enet1-sgmii-phy = &sgmii_phy1d;
 		spi0 = &qspi;
 		spi1 = &dspi0;
 	};
diff --git a/arch/arm/dts/ls1021a-twr.dtsi b/arch/arm/dts/ls1021a-twr.dtsi
index 14e0cea..928e100 100644
--- a/arch/arm/dts/ls1021a-twr.dtsi
+++ b/arch/arm/dts/ls1021a-twr.dtsi
@@ -11,9 +11,9 @@
 	model = "LS1021A TWR Board";
 
 	aliases {
-		enet2_rgmii_phy = &rgmii_phy1;
-		enet0_sgmii_phy = &sgmii_phy2;
-		enet1_sgmii_phy = &sgmii_phy0;
+		enet2-rgmii-phy = &rgmii_phy1;
+		enet0-sgmii-phy = &sgmii_phy2;
+		enet1-sgmii-phy = &sgmii_phy0;
 		spi0 = &qspi;
 		spi1 = &dspi1;
 	};