arm/dt: mpq8092: Add SATA support

The SATA host controller in MPQ8092 is AHCI1.3 specification
compliant and works with standard Linux ACHI and LIBATA drivers.
Enable SATA device in dts file and add a DT match entry in
AHCI platform driver.

Change-Id: I8bc7739c26ee40bdc07d66588a1bb260ccd15b84
Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org>