ARM: shmobile: r8a7791: Fix the I2C clocks parents in DT

All I2C clocks derive from the HP clock, not from the P clock. Fix them.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Wolfram Sang <wsa@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7791.dtsi

@@ -805,9 +805,9 @@ R8A7791_CLK_ETHER R8A7791_CLK_SATA1 R8A7791_CLK_SATA0
 		mstp9_clks: mstp9_clks@e6150994 {
 			compatible = "renesas,r8a7791-mstp-clocks", "renesas,cpg-mstp-clocks";
 			reg = <0 0xe6150994 0 4>, <0 0xe61509a4 0 4>;
-			clocks = <&p_clk>, <&p_clk>, <&cpg_clocks R8A7791_CLK_QSPI>, <&p_clk>,
-				 <&cp_clk>, <&p_clk>, <&p_clk>, <&p_clk>,
-				 <&p_clk>, <&p_clk>;
+			clocks = <&p_clk>, <&p_clk>, <&cpg_clocks R8A7791_CLK_QSPI>, <&hp_clk>,
+				 <&cp_clk>, <&hp_clk>, <&hp_clk>, <&hp_clk>,
+				 <&hp_clk>, <&hp_clk>;
 			#clock-cells = <1>;
 			renesas,clock-indices = <
 				R8A7791_CLK_RCAN1 R8A7791_CLK_RCAN0 R8A7791_CLK_QSPI_MOD R8A7791_CLK_I2C5