hwmon: qpnp-adc-common: Update mapping table

Update mapping table for 100k/150k to keep it
consistent with other voltage-temperature mapping tables.

The previous mapping table format was in temperature-voltage.
Having a single format as much as possible avoids confusion
with the clients when it comes to using the appropriate
api's to convert temperature-voltage or voltage-temperature.

Change-Id: I736710d243527e02b8521e7b5cd9bf2192809289
Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org>