iio: adc: Combine read functions for PMIC5 and PMIC7

Add a common function used for read_raw callback for both PMIC5
and PMIC7 ADCs.

Signed-off-by: Jishnu Prakash <jprakash@codeaurora.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Jishnu Prakash 2020-06-23 12:59:59 +05:30 • committed by Jonathan Cameron
commit 8f52a15aca