support DFU detach to switch from fw to bootloader

This makes flashing a bit more convenient, because pushing the button is
not required. It can be disabled using make DISABLE_DFU_DETACH=1.

Change-Id: I04d05054d1c0e3988b8eafd93c6524f4a0489cb7
8 files changed
tree: 7a6aac9bfc12d55e91e5307509f598f293ecc69e
  1. ccid_common/
  2. ccid_host/
  3. contrib/
  4. sysmoOCTSIM/
  5. .gitignore
  6. git-version-gen