regulator: qcom_spmi: Fix docs for PM8004

Fixes: 2e36e140 ("regulator: qcom_spmi: Add support for PM8004 regulators")
Signed-off-by: NPetr Vorel <petr.vorel@gmail.com>
Link: https://lore.kernel.org/r/20200127231439.3562452-1-petr.vorel@gmail.comSigned-off-by: NMark Brown <broonie@kernel.org>

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

@@ -161,7 +161,7 @@ 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:
+pm8004:
 	s2, s5
 
 pm8005: