device.mk: Add android.hardware.power@1.0-impl

Also adds the open method for the power HAL, so that it can be
dl-opened.

Test: No
Bug: 31177288
Change-Id: Ic2aba1867f6cc6df796fd04620413a479ff2c330
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>
2 files changed