dt-bindings: regulator: qcom,rpmh-regulator: allow i, j, l, m & n as RPMh resource name suffix

Add "i", "j", "l", "m" and "n" to the allowed subffix list as they can be
used as RPMh resource name suffixes on new platforms.
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Acked-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230822-topic-sm8x50-upstream-rpmh-regulator-suffix-v2-1-136b315085a4@linaro.orgSigned-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/regulator/qcom,rpmh-regulator.yaml

@@ -92,7 +92,7 @@ properties:
         RPMh resource name suffix used for the regulators found
         on this PMIC.
     $ref: /schemas/types.yaml#/definitions/string
-    enum: [a, b, c, d, e, f, g, h, k]
+    enum: [a, b, c, d, e, f, g, h, i, j, k, l, m, n]
 
   qcom,always-wait-for-ack:
     description: |