power: qpnp-smb5: Add break statement for a power supply property

Add a break statement for POWER_SUPPLY_PROP_INPUT_VOLTAGE_REGULATION
in get property function for wireless power supply, without which it
will drop through to other power supply property.

Change-Id: If9ed81d8a94aac56dcdbac33d7a26ef92305e936
Signed-off-by: Sahil Chandna <chandna@codeaurora.org>