acpi/sata: add generic sata ssdt port generator

generate_sata_ssdt_ports() generates ports based on sata enable map

Change-Id: Ie68e19c93f093d6c61634c4adfde484b88f28a77
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Reviewed-on: http://review.coreboot.org/9708
Tested-by: build bot (Jenkins)
Reviewed-by: Philipp Deppenwiese <zaolin@das-labor.org>
Reviewed-by: Peter Stuge <peter@stuge.se>
diff --git a/src/acpi/Kconfig b/src/acpi/Kconfig
new file mode 100644
index 0000000..e025f99
--- /dev/null
+++ b/src/acpi/Kconfig
@@ -0,0 +1,6 @@
+
+config ACPI_SATA_GENERATOR
+	bool
+	default n
+	help
+	  Use acpi sata port generator.