hwmon: qpnp-adc-current: Add init_completion
hwmon: qpnp-adc-current: Add init_completion

Initialize the completion before requesting a
conversion. This is to avoid cases where we might
miss the completion and rely on the timed wait which
would cause slight delay before returning the result
to the client.

Change-Id: I49b635699c3432ca8363d68493ea02e17f7c6c64
Signed-off-by: Siddartha Mohanadoss <9c97603a3a6be1a8a5dd7a9c9672e79ad0487bf3@codeaurora.org>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas