dt-bindings: mfd: samsung,s2mps11: Add compatible for s2mpu05-pmic

S2MPU05 is a PMIC present in Samsung's Exynos7870 devices. It houses
voltage regulators (21 LDOs and 5 BUCKs), and an RTC module. Add the
compatible string "samsung,s2mpu05-pmic" to the PMIC documentation.

Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250204-exynos7870-pmic-regulators-v1-2-05adad38102c@disroot.org
Signed-off-by: Lee Jones <lee@kernel.org>

Author: Kaustabh Chakraborty

Documentation/devicetree/bindings/mfd/samsung,s2mps11.yaml

@@ -25,6 +25,7 @@ properties:
       - samsung,s2mps14-pmic
       - samsung,s2mps15-pmic
       - samsung,s2mpu02-pmic
+      - samsung,s2mpu05-pmic
 
   clocks:
     $ref: /schemas/clock/samsung,s2mps11.yaml
@@ -125,6 +126,18 @@ allOf:
         samsung,s2mps11-acokb-ground: false
         samsung,s2mps11-wrstbi-ground: false
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: samsung,s2mpu05-pmic
+    then:
+      properties:
+        regulators:
+          $ref: /schemas/regulator/samsung,s2mpu05.yaml
+        samsung,s2mps11-acokb-ground: false
+        samsung,s2mps11-wrstbi-ground: false
+
 examples:
   - |
     #include <dt-bindings/interrupt-controller/irq.h>