[rdkb][common][bsp][Add mt7988d support]

[Description]
Add mt7988d support

[Release-log]

Change-Id: I58db282555c9febbb964c4ba5ef0f87a5fd1df1c
diff --git a/conf/machine/filogic.conf b/conf/machine/filogic.conf
index 782d265..6278e7c 100644
--- a/conf/machine/filogic.conf
+++ b/conf/machine/filogic.conf
@@ -14,6 +14,14 @@
 MACHINEOVERRIDES .="${@bb.utils.contains('DISTRO_FEATURES','switch_gsw_mode',':gsw','',d)}"
 MACHINEOVERRIDES .="${@bb.utils.contains('DISTRO_FEATURES','emmc',':emmc','',d)}"
 
+KERNEL_DEVICETREE_mt7988_mt7988d_gsw = " \
+    mediatek/mt7988d-gsw-10g-spim-nand.dtb \
+    "
+
+KERNEL_DEVICETREE_mt7988_mt7988d = " \
+    mediatek/mt7988d-dsa-10g-spim-nand.dtb \
+    "
+
 KERNEL_DEVICETREE_mt7988_gsw = " \
     mediatek/mt7988a-gsw-10g-spim-nand.dtb \
     "