config: add ahci for pci capable machines

This patch enables AHCI for all machines supporting PCI.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
diff --git a/default-configs/pci.mak b/default-configs/pci.mak
index d700b3c..0471efb 100644
--- a/default-configs/pci.mak
+++ b/default-configs/pci.mak
@@ -13,3 +13,4 @@
 CONFIG_IDE_CORE=y
 CONFIG_IDE_QDEV=y
 CONFIG_IDE_PCI=y
+CONFIG_AHCI=y