defconfig: apq8084: Enable SATA support for APQ8084

APQ8084 supports 6Gbps SATA 3.1 compliant PHY and AHCI 1.3 compliant
controller, enable the controller and PHY driver.

Change-Id: I2b67f1e167fa29cb9c3a26fe8f7efe0b586fa907
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org>