Revert "megasas: disable due to build breakage"

This reverts commit 92336855975805d88c7979f53bc05c2d47abab04.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/default-configs/pci.mak b/default-configs/pci.mak
index 9d3e1db..4b49c00 100644
--- a/default-configs/pci.mak
+++ b/default-configs/pci.mak
@@ -10,6 +10,7 @@
 CONFIG_PCNET_PCI=y
 CONFIG_PCNET_COMMON=y
 CONFIG_LSI_SCSI_PCI=y
+CONFIG_MEGASAS_SCSI_PCI=y
 CONFIG_RTL8139_PCI=y
 CONFIG_E1000_PCI=y
 CONFIG_IDE_CORE=y