Compile most IDE devices only once

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
diff --git a/default-configs/mips64-softmmu.mak b/default-configs/mips64-softmmu.mak
index 1543c4f..4707ce3 100644
--- a/default-configs/mips64-softmmu.mak
+++ b/default-configs/mips64-softmmu.mak
@@ -8,3 +8,7 @@
 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