dt-bindings: soc: samsung: exynos-pmu: Add exynos990-pmu compatible

Add a dt-binding compatible for the Exynos990 PMU. It's compatible
with the Exynos7 PMU design. It handles system reboot, as well as
other system control registers (i.e registers for the USB PHY).

Signed-off-by: Igor Belwon <[email protected]>
Acked-by: Conor Dooley <[email protected]>
Reviewed-by: Alim Akhtar <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Krzysztof Kozlowski <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnd Bergmann <[email protected]>

Author: BotchedRPR

Documentation/devicetree/bindings/soc/samsung/exynos-pmu.yaml

@@ -55,6 +55,7 @@ properties:
               - samsung,exynos7885-pmu
               - samsung,exynos8895-pmu
               - samsung,exynos9810-pmu
+              - samsung,exynos990-pmu
               - samsung,exynosautov9-pmu
               - samsung,exynosautov920-pmu
               - tesla,fsd-pmu