mfd: dt-bindings: qcom-pm8xxx: Rename doc file to conform to naming convention

Cc: Stanimir Varbanov <svarbanov@mm-sol.com>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
1 file changed