nicole: DTS: Add RCLK to MAC clocks

This is the same changes which ones were done in the linux repo for all
AST2500 based DTS.

Original commit is ed7120aa   Andrew Jeffery <andrew@aj.id.au>
  "ARM: dts: aspeed: Add RCLK to MAC clocks for RMII interfaces"

We need to ungate RCLK on AST2500- and AST2600-based platforms for RMII
to function. RMII interfaces are commonly used for NCSI.

(From meta-yadro rev: f66aaa5cea8ee9a6423cb2d7dcf7f5e75bf95f96)

Change-Id: Ieb908db2fb5ef0f0e4ff53dd1563b50e14fc2334
Signed-off-by: Alexander Filippov <a.filippov@yadro.com>
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-yadro/meta-nicole/recipes-kernel/linux/linux-aspeed/arch/arm/boot/dts/aspeed-bmc-opp-nicole.dts b/meta-yadro/meta-nicole/recipes-kernel/linux/linux-aspeed/arch/arm/boot/dts/aspeed-bmc-opp-nicole.dts
index 5330522..befdbb7 100644
--- a/meta-yadro/meta-nicole/recipes-kernel/linux/linux-aspeed/arch/arm/boot/dts/aspeed-bmc-opp-nicole.dts
+++ b/meta-yadro/meta-nicole/recipes-kernel/linux/linux-aspeed/arch/arm/boot/dts/aspeed-bmc-opp-nicole.dts
@@ -140,6 +140,9 @@
 
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_rmii1_default>;
+	clocks = <&syscon ASPEED_CLK_GATE_MAC1CLK>,
+		 <&syscon ASPEED_CLK_GATE_MAC1RCLK>;
+	clock-names = "MACCLK", "RCLK";
 };
 
 &i2c1 {