powerpc: Enable multipath modules on ppc64 and pseries

Enable a few modules required to boot on a POWER multipath
box.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig
index 2dec56d..eafec1a 100644
--- a/arch/powerpc/configs/pseries_defconfig
+++ b/arch/powerpc/configs/pseries_defconfig
@@ -152,6 +152,9 @@
 CONFIG_SCSI_QLA_FC=m
 CONFIG_SCSI_QLA_ISCSI=m
 CONFIG_SCSI_LPFC=m
+CONFIG_SCSI_DH=m
+CONFIG_SCSI_DH_RDAC=m
+CONFIG_SCSI_DH_ALUA=m
 CONFIG_ATA=y
 # CONFIG_ATA_SFF is not set
 CONFIG_MD=y
@@ -169,6 +172,9 @@
 CONFIG_DM_MIRROR=m
 CONFIG_DM_ZERO=m
 CONFIG_DM_MULTIPATH=m
+CONFIG_DM_MULTIPATH_QL=m
+CONFIG_DM_MULTIPATH_ST=m
+CONFIG_DM_UEVENT=y
 CONFIG_BONDING=m
 CONFIG_DUMMY=m
 CONFIG_NETCONSOLE=y