Makefile: Provide VPL devicetree and padding to binman

Provide these parameters to binman so that it can produce images
targeted at VPL.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/Makefile b/Makefile
index 750ce61..6738b86 100644
--- a/Makefile
+++ b/Makefile
@@ -1388,8 +1388,10 @@
 		-a rockchip-tpl-path=$(ROCKCHIP_TPL) \
 		-a spl-bss-pad=$(if $(CONFIG_SPL_SEPARATE_BSS),,1) \
 		-a tpl-bss-pad=$(if $(CONFIG_TPL_SEPARATE_BSS),,1) \
+		-a vpl-bss-pad=$(if $(CONFIG_VPL_SEPARATE_BSS),,1) \
 		-a spl-dtb=$(CONFIG_SPL_OF_REAL) \
 		-a tpl-dtb=$(CONFIG_TPL_OF_REAL) \
+		-a vpl-dtb=$(CONFIG_VPL_OF_REAL) \
 		-a pre-load-key-path=${PRE_LOAD_KEY_PATH} \
 		$(BINMAN_$(@F))