hwmon: qpnp-adc-common: Fix usb scaling
hwmon: qpnp-adc-common: Fix usb scaling

USB scaling should use ratiometric calibration when
performing reverse calibration to calculate set
thresholds written for threshold monitoring as it uses
the 100k pull-up.

Change-Id: Ic4317ecd9d69b17f11618abc66ae609b744f8d6e
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