ARM: dts: r7s72100: Add SPIBSC clocks

Add clocks for SPIBSC blocks.

Also modify the flash node for the GR-PEACH board at the same time
because now that the SPIBSC clock is identified, if it is not used
by any driver, it will be turned off at the end of kernel boot.
That would not work out so well for an XIP system such as GR-PEACH.
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Link: https://lore.kernel.org/r/20200210123153.8257-1-chris.brandt@renesas.comSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arch/arm/boot/dts/r7s72100-gr-peach.dts

@@ -41,6 +41,9 @@ flash@18000000 {
 		bank-width = <4>;
 		device-width = <1>;
 
+		clocks = <&mstp9_clks R7S72100_CLK_SPIBSC0>;
+		power-domains = <&cpg_clocks>;
+
 		#address-cells = <1>;
 		#size-cells = <1>;
 

arch/arm/boot/dts/r7s72100.dtsi

@@ -467,11 +467,12 @@ mstp9_clks: mstp9_clks@fcfe0438 {
 			#clock-cells = <1>;
 			compatible = "renesas,r7s72100-mstp-clocks", "renesas,cpg-mstp-clocks";
 			reg = <0xfcfe0438 4>;
-			clocks = <&p0_clk>, <&p0_clk>, <&p0_clk>, <&p0_clk>;
+			clocks = <&p0_clk>, <&p0_clk>, <&p0_clk>, <&p0_clk>, <&b_clk>, <&b_clk>;
 			clock-indices = <
 				R7S72100_CLK_I2C0 R7S72100_CLK_I2C1 R7S72100_CLK_I2C2 R7S72100_CLK_I2C3
+				R7S72100_CLK_SPIBSC0 R7S72100_CLK_SPIBSC1
 			>;
-			clock-output-names = "i2c0", "i2c1", "i2c2", "i2c3";
+			clock-output-names = "i2c0", "i2c1", "i2c2", "i2c3", "spibsc0", "spibsc1";
 		};
 
 		mstp10_clks: mstp10_clks@fcfe043c {