DO NOT MERGE StorageDumpsysTest allows charger off on USB connection

Devices connected by ADB can typically also pull 500mA of current to
charge the device.  For devices with larger batteries it is ill
advised to charge at a rate lower than 0.05C, so they do not.

Print a warning that I/O was attributed to charger off when
ADB USB connection assumes charger on in StoragedDumpsysTest.

Test: cts
Bug: 118833202
(cherry picked from commit d6d278b1)
Merged-In: I2d7d38d8d2e146c3a67df4f3ecad5e8d66600ac1
Change-Id: I7f61be706fd554fa3a7abba9949c14e72c0ca721
Signed-off-by: Raj Mamadgi <r.mamadgi@samsung.com>