dt-bindings: qcom_spmi: Document PM8005 regulators

Document the dt bindings for the PM8005 regulators which are usually used
for VDD of standalone blocks on a SoC like the GPU.
Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt

@@ -4,6 +4,7 @@ Qualcomm SPMI Regulators
 	Usage: required
 	Value type: <string>
 	Definition: must be one of:
+			"qcom,pm8005-regulators"
 			"qcom,pm8841-regulators"
 			"qcom,pm8916-regulators"
 			"qcom,pm8941-regulators"
@@ -120,6 +121,9 @@ The regulator node houses sub-nodes for each regulator within the device. Each
 sub-node is identified using the node's name, with valid values listed for each
 of the PMICs below.
 
+pm8005:
+	s1, s2, s3, s4
+
 pm8841:
 	s1, s2, s3, s4, s5, s6, s7, s8