arm64: dts: exynos: use dedicated wake-up pinctrl compatible in Exynos850

Older Samsung Exynos SoC pin controller nodes (Exynos3250, Exynos4,
Exynos5, Exynos5433) with external wake-up interrupts, expected to have
one interrupt for multiplexing these wake-up interrupts.  Also they
expected to have exactly one pin controller capable of external wake-up
interrupts.

It seems however that newer ARMv8 Exynos SoC like Exynos850 and
ExynosAutov9 have differences:
1. No multiplexed external wake-up interrupt, only direct,
2. More than one pin controller capable of external wake-up interrupts.

Use dedicated Exynos850 compatible for its external wake-up interrupts
controller to indicate the differences.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Link: https://lore.kernel.org/r/20220111201722.327219-21-krzysztof.kozlowski@canonical.com

arch/arm64/boot/dts/exynos/exynos850.dtsi

@@ -328,7 +328,7 @@ pinctrl_alive: pinctrl@11850000 {
 			reg = <0x11850000 0x1000>;
 
 			wakeup-interrupt-controller {
-				compatible = "samsung,exynos7-wakeup-eint";
+				compatible = "samsung,exynos850-wakeup-eint";
 			};
 		};
 
@@ -337,7 +337,7 @@ pinctrl_cmgp: pinctrl@11c30000 {
 			reg = <0x11c30000 0x1000>;
 
 			wakeup-interrupt-controller {
-				compatible = "samsung,exynos7-wakeup-eint";
+				compatible = "samsung,exynos850-wakeup-eint";
 			};
 		};