Compile most IDE devices only once

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
diff --git a/default-configs/i386-softmmu.mak b/default-configs/i386-softmmu.mak
index 0f532bb..fd4d969 100644
--- a/default-configs/i386-softmmu.mak
+++ b/default-configs/i386-softmmu.mak
@@ -7,3 +7,7 @@
 CONFIG_I8254=y
 CONFIG_PCSPK=y
 CONFIG_USB_UHCI=y
+CONFIG_IDE_QDEV=y
+CONFIG_IDE_PCI=y
+CONFIG_IDE_ISA=y
+CONFIG_IDE_PIIX=y