dts/arm: STM32: Adding flash clock settings in dtsi for stm32l4 series.

This patch adds flash clock settings in device tree for stm32l4
series so that the stm32 flash driver can get the clock settings
from this dtsi file.

Signed-off-by: Krishna Mohan Dani <[email protected]>

Author: ikmdani

dts/arm/st/l4/stm32l4.dtsi

@@ -39,6 +39,7 @@
 			label = "FLASH_CTRL";
 			reg = <0x40022000 0x400>;
 			interrupts = <4 0>;
+			clocks = <&rcc STM32_CLOCK_BUS_AHB1 0x00000100>;
 
 			#address-cells = <1>;
 			#size-cells = <1>;