dt-bindings: mfd: db8500-prcmu: Deprecate EPOD regulators

Deprecate the db8500-prcmu-regulators node and make it optional as EPOD
control moves to generic power domains. External consumers of VAPE and
VSMPS2 now use the actual AB8500 or AB8505 buck regulators.

Stop requiring the individual regulator child nodes while retaining
their definitions for existing device trees.

Assisted-by: LLM
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
Link: https://patch.msgid.link/20260921-ux500-power-domains-v7-1-v3-4-9352be6b86b1@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>

Documentation/devicetree/bindings/mfd/stericsson,db8500-prcmu.yaml

@@ -58,6 +58,7 @@ properties:
     const: 2
 
   db8500-prcmu-regulators:
+    deprecated: true
     description: Node describing the DB8500 regulators. These are mainly
       power rails inside the silicon but some of those are also routed
       out to external pins.
@@ -207,26 +208,6 @@ properties:
 
     required:
       - compatible
-      - db8500_vape
-      - db8500_varm
-      - db8500_vmodem
-      - db8500_vpll
-      - db8500_vsmps1
-      - db8500_vsmps2
-      - db8500_vsmps3
-      - db8500_vrf1
-      - db8500_sva_mmdsp
-      - db8500_sva_mmdsp_ret
-      - db8500_sva_pipe
-      - db8500_sia_mmdsp
-      - db8500_sia_mmdsp_ret
-      - db8500_sia_pipe
-      - db8500_sga
-      - db8500_b2r2_mcde
-      - db8500_esram12
-      - db8500_esram12_ret
-      - db8500_esram34
-      - db8500_esram34_ret
 
     additionalProperties: false
 
@@ -294,6 +275,5 @@ required:
   - interrupts
   - interrupt-controller
   - '#interrupt-cells'
-  - db8500-prcmu-regulators
 
 additionalProperties: false