hwmon: Add humidity attribute to sysfs ABI
hwmon: Add humidity attribute to sysfs ABI

The humidity attribute is already supported by the sht15 driver, and another
driver supporting it is about to be added. Make it official.

Signed-off-by: Guenter Roeck <32ce62c5480002985aec58d7044038218061ef55@ericsson.com>
Acked-by: Jonathan Cameron <09f65b71b7655725897b2fd41a09a0cefe2e1ace@cam.ac.uk>
Acked-by: Jean Delvare <49ad6a9f5aa17024c23048df346d55bda6837e01@linux-fr.org>

KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas