libuuu: sdp: SDPWriteCmd: allow to skip check_ack
Allow to skip check_ack since there are use cases where this generates
false positives. One use-case would be:
1st) loading a small binary capable to handle USB transfers
2nd) loading a larger binary by this command. The larger binary is
started immediatly after all blocks are received on the device
side.
Barebox does have such an behaviour and loading the BL33 binary triggers
an false positiv.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>