board: Add MT8183 pumpkin board support

Add the MT8183 pumpkin board support.

Signed-off-by: Fabien Parent <fparent@baylibre.com>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index f5fe327..9a8de46 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -1013,6 +1013,7 @@
 	mt7622-bananapi-bpi-r64.dtb \
 	mt7623n-bananapi-bpi-r2.dtb \
 	mt7629-rfb.dtb \
+	mt8183-pumpkin.dtb \
 	mt8512-bm1-emmc.dtb \
 	mt8516-pumpkin.dtb \
 	mt8518-ap1-emmc.dtb