x86: ivybridge: Add SATA init

Add code to set up the SATA interfaces on boot.

Signed-off-by: Simon Glass <sjg@chromium.org>

include/fdtdec.h

@@ -120,6 +120,7 @@ enum fdt_compat_id {
 	COMPAT_INTEL_LPC,		/* Intel Low Pin Count I/F */
 	COMPAT_INTEL_MICROCODE,		/* Intel microcode update */
 	COMPAT_MEMORY_SPD,		/* Memory SPD information */
+	COMPAT_INTEL_PANTHERPOINT_AHCI,	/* Intel Pantherpoint AHCI */
 
 	COMPAT_COUNT,
 };