Firmware fixes and improvements for flashing via blackmagic (#2321)

Co-authored-by: quen0n <quen0n@github.com>
Co-authored-by: あく <alleteam@gmail.com>
Co-authored-by: hedger <hedger@users.noreply.github.com>

scripts/fbt_tools/fbt_debugopts.py

@@ -47,6 +47,7 @@ def generate(env, **kw):
             "source ${FBT_DEBUG_DIR}/gdbinit",
         ],
         GDBOPTS_BLACKMAGIC=[
+            "-q",
             "-ex",
             "monitor swdp_scan",
             "-ex",