dts: import stm32mp1 device tree from linux kernel

This patch rebase the stm32mp1 device tree source from
linux kernel v4.18-rc1.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
diff --git a/arch/arm/dts/stm32mp15-ddr.dtsi b/arch/arm/dts/stm32mp15-ddr.dtsi
index 094f842..4172c02 100644
--- a/arch/arm/dts/stm32mp15-ddr.dtsi
+++ b/arch/arm/dts/stm32mp15-ddr.dtsi
@@ -13,12 +13,12 @@
 			reg = <0x5A003000 0x550
 			       0x5A004000 0x234>;
 
-			clocks = <&rcc_clk AXIDCG>,
-				 <&rcc_clk DDRC1>,
-				 <&rcc_clk DDRC2>,
-				 <&rcc_clk DDRPHYC>,
-				 <&rcc_clk DDRCAPB>,
-				 <&rcc_clk DDRPHYCAPB>;
+			clocks = <&rcc AXIDCG>,
+				 <&rcc DDRC1>,
+				 <&rcc DDRC2>,
+				 <&rcc DDRPHYC>,
+				 <&rcc DDRCAPB>,
+				 <&rcc DDRPHYCAPB>;
 
 			clock-names = "axidcg",
 				      "ddrc1",