powerpc/configs: Add BLK_DEV_NVME to pseries_defconfig

I've forgotten to manually enable NVME when building pseries kernels
for machines with NVME adapters. Since it's a reasonably common
configuration, enable it by default.
Signed-off-by: Anton Blanchard <anton@ozlabs.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200729040828.2312966-1-anton@ozlabs.org

arch/powerpc/configs/pseries_defconfig

@@ -93,6 +93,7 @@ CONFIG_BLK_DEV_NBD=m
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=65536
 CONFIG_VIRTIO_BLK=m
+CONFIG_BLK_DEV_NVME=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_CHR_DEV_ST=m
 CONFIG_BLK_DEV_SR=y