[][SBC][MT7988][Add DM_INIT in config-5.4]

[Description]
Add DM_INIT in config-5.4

Enable "dm-mod.create=" parameter to create mapped devices
at init time. This option is useful to allow mounting rootfs
without requiring an initramfs.

[Release-log]
N/A

Change-Id: Ic12f4bdadfc9e8d15526d76555e872623c33ff5f
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/6686593
Build: srv_hbgsm110
diff --git a/target/linux/mediatek/mt7988/config-5.4 b/target/linux/mediatek/mt7988/config-5.4
index 75db83e..b22e359 100644
--- a/target/linux/mediatek/mt7988/config-5.4
+++ b/target/linux/mediatek/mt7988/config-5.4
@@ -168,7 +168,7 @@
 CONFIG_DM_BUFIO=y
 # CONFIG_DM_CRYPT is not set
 # CONFIG_DM_DEBUG_BLOCK_MANAGER_LOCKING is not set
-# CONFIG_DM_INIT is not set
+CONFIG_DM_INIT=y
 # CONFIG_DM_MIRROR is not set
 # CONFIG_DM_SNAPSHOT is not set
 CONFIG_DM_VERITY=y