Add support for the Qualcomm PM8038 PMIC chip. The core driver will communicate with the PMIC chip via the MSM SSBI bus. Initial support is provided for: IRQ, GPIO, MPP, RTC, Power Key, Misc, and Debug. Change-Id: I83f995cc238699100a05e82d04b45ea2a63eb667 Signed-off-by: Jay Chokshi <jchokshi@codeaurora.org>