Bindings do not allow vdd-hba-max-microamp property and the driver does
not use it (does not control load of vdd-hba supply). Skip looking for
this property to avoid misleading dmesg messages:
ufshcd-qcom 1d84000.ufs: ufshcd_populate_vreg: unable to find vdd-hba-max-microamp
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>