southbridge/ibexpeak: use new ssdt sata port generator

Drop old incomplete, broken and hardcoded sata.asl properties.
The new sata acpi generator only needs a proper defined device.

Change-Id: Id3eca5551a070dfdd6fa674e1d5b6627e28ab5a7
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Reviewed-on: http://review.coreboot.org/9710
Tested-by: build bot (Jenkins)
Reviewed-by: Peter Stuge <peter@stuge.se>

src/southbridge/intel/ibexpeak/Kconfig

@@ -35,6 +35,7 @@ config SOUTH_BRIDGE_OPTIONS # dummy
 	select SOUTHBRIDGE_INTEL_COMMON
 	select HAVE_USBDEBUG_OPTIONS
 	select COMMON_FADT
+	select ACPI_SATA_GENERATOR
 
 config EHCI_BAR
 	hex