fix(flash.gdb): Replace with more granular flash scripts

Signed-off-by: Rahix <rahix@rahix.de>

flash.gdb → flash-all.gdb

-target remote localhost:3333
+source init.gdb
 
-define reset
-    mon mww 0x40000004 0x80000000
-end
-load build/bootloader/bootloader.elf
+set confirm off
+
+echo #### EPICARDIUM ####\n
 load build/epicardium/epicardium.elf
+echo #### PYCARDIUM ####\n
 load build/pycardium/pycardium.elf
+reset
 quit

flash-bootloader.gdb

+source init.gdb
+
+set confirm off
+
+echo #### BOOTLOADER ####\n
+load build/bootloader/bootloader.elf
+reset
+quit

flash-epicardium.gdb

+source init.gdb
+
+set confirm off
+
+echo #### EPICARDIUM ####\n
+load build/epicardium/epicardium.elf
+reset
+quit

flash-pycardium.gdb

+source init.gdb
+
+set confirm off
+
+echo #### PYCARDIUM ####\n
+load build/pycardium/pycardium.elf
+reset
+quit