Revert "fuji: build our own power HAL"

This reverts commit d87b41413f2a13b6027cc7fabea92f13f6ed5834.
Revert "power: rename to power.fuji"

This reverts commit ebb1e5ee3ac8c44496ec6a28b5c4431387d9cfca.
Revert "power: suqashed import of kk_2.7-stable qcom power HAL"

This reverts commit bf34aeff6e5da42133cedaa81810f208b0f10740.