ARM: dts: stm32: add sai id registers to stm32mp157c

Add identification registers to address range
of SAI DT parent node, for stm32mp157c.
Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>

arch/arm/boot/dts/stm32mp157c.dtsi

@@ -746,7 +746,7 @@ sai1: sai@4400a000 {
 			#address-cells = <1>;
 			#size-cells = <1>;
 			ranges = <0 0x4400a000 0x400>;
-			reg = <0x4400a000 0x4>;
+			reg = <0x4400a000 0x4>, <0x4400a3f0 0x10>;
 			interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>;
 			resets = <&rcc SAI1_R>;
 			status = "disabled";
@@ -778,7 +778,7 @@ sai2: sai@4400b000 {
 			#address-cells = <1>;
 			#size-cells = <1>;
 			ranges = <0 0x4400b000 0x400>;
-			reg = <0x4400b000 0x4>;
+			reg = <0x4400b000 0x4>, <0x4400b3f0 0x10>;
 			interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
 			resets = <&rcc SAI2_R>;
 			status = "disabled";
@@ -809,7 +809,7 @@ sai3: sai@4400c000 {
 			#address-cells = <1>;
 			#size-cells = <1>;
 			ranges = <0 0x4400c000 0x400>;
-			reg = <0x4400c000 0x4>;
+			reg = <0x4400c000 0x4>, <0x4400c3f0 0x10>;
 			interrupts = <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>;
 			resets = <&rcc SAI3_R>;
 			status = "disabled";
@@ -1164,7 +1164,7 @@ sai4: sai@50027000 {
 			#address-cells = <1>;
 			#size-cells = <1>;
 			ranges = <0 0x50027000 0x400>;
-			reg = <0x50027000 0x4>;
+			reg = <0x50027000 0x4>, <0x500273f0 0x10>;
 			interrupts = <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>;
 			resets = <&rcc SAI4_R>;
 			status = "disabled";