Add the missing endianness conversion when sending the enable request so
that the driver will work also on a hypothetical big-endian machine.

This issue was reported by sparse.

Fixes: 29e8142b ("power: supply: Introduce Qualcomm PMIC GLINK power supply")
Cc: stable@vger.kernel.org	# 6.3
Cc: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Andrew Halaney <ahalaney@redhat.com>
Link: https://lore.kernel.org/r/20230929101649.20206-1-johan+linaro@kernel.orgSigned-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>