sort the symfile by symbol type

tools/sort_symfile.sh

@@ -0,0 +1,9 @@
+sed $1 \
+    -e "s/^..:[0-3]/0_ROM0@&/g" \
+    -e "s/^..:[4-7]/1_ROMX@&/g" \
+    -e "s/^..:[8-9]/2_VRAM@&/g" \
+    -e "s/^..:[A-B]/3_SRAM@&/g" \
+    -e "s/^00:[C-D]/4_WRAM0@&/g" \
+    -e "s/^..:[D-D]/5_WRAMX@&/g" \
+| sort -o $1
+sed -i $1 -e "s/^\w*@//g"