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: 214472ddc567d8978d6f9560e639a517a4708c4e
  1. ccid_common/
  2. ccid_host/
  3. contrib/
  4. sysmoOCTSIM/
  5. .gitignore
  6. git-version-gen