Add RW_LEGACY support for AMD MDN boards

Signed-off-by: Matt DeVillier <[email protected]>

Author: MrChromebox

firmware.sh

@@ -57,6 +57,8 @@ elif [ "$isGlk" = true ]; then
 	rwlegacy_file=$rwl_altfw_glk
 elif [ "$isAdl" = true ]; then
 	rwlegacy_file=$rwl_altfw_adl
+elif [ "$isMdn" = true ]; then
+	rwlegacy_file=$rwl_altfw_mdn
 else
 	echo_red "Unknown or unsupported device (${device}); cannot update RW_LEGACY firmware."
 	read -ep "Press enter to return to the main menu"

sources.sh

@@ -276,6 +276,7 @@ export rwl_altfw_jsl="rwl_altfw_jsl-mrchromebox_20211115.bin"
 export rwl_altfw_pco="rwl_altfw_pco-mrchromebox_20210623.bin"
 export rwl_altfw_tgl="rwl_altfw_tgl-mrchromebox_20210827.bin"
 export rwl_altfw_adl="rwl_altfw_adl-mrchromebox_20230509.bin"
+export rwl_altfw_mdn="rwl_altfw_mdn-mrchromebox_20230727.bin"
 
 #hsw/bdw headless VBIOS
 export hswbdw_headless_vbios="hswbdw_vgabios_1040_cbox_headless.dat"