Add debug flag by default, no need not to have it in the elf.
[fw/stlink] / example / blink /
drwxr-xr-x   ..
-rw-r--r-- 534 Makefile
-rwxr-xr-x 2048 default_bootloader.bin
-rwxr-xr-x 189 disasm.sh
-rw-r--r-- 1747 main.c
-rwxr-xr-x 64 o.bin