sb/amd/{agesa,pi}/hudson/Kconfig: Change default SATA mode to AHCI

The attempt to install pfSense on hard disk on PC Engines apu2 board
ended up in a SATA driver error. The problem is related only to BSD
and didn't occur with Linux kernel. Changing SATA mode from IDE to
AHCI solved the problem.

Additionally AHCI is faster than IDE so it speeds up the installation.
Since AHCI works perfectly with SeaBIOS, Linux and BSD, make it a default
choice for all Hudson southbridges.

Change-Id: I1b0322392712d797dd5a8931150c8d0ff1b60940
Signed-off-by: Piotr Kleinschmidt <piotr.kleins@gmail.com>
Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35891
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/southbridge/amd/agesa/hudson/Kconfig b/src/southbridge/amd/agesa/hudson/Kconfig
index e56a493..96857b0 100644
--- a/src/southbridge/amd/agesa/hudson/Kconfig
+++ b/src/southbridge/amd/agesa/hudson/Kconfig
@@ -90,7 +90,7 @@
 
 config HUDSON_SATA_MODE
 	int "SATA Mode"
-	default 0
+	default 2
 	range 0 6
 	help
 	  Select the mode in which SATA should be driven. NATIVE AHCI, or RAID.