usb: bluetooth: Use transfer API for ACL packets
usb: bluetooth: Use transfer API for ACL packets

Use transfer API for ACL out transfers. No extra buffer is requested,
directly use the net buf and update its len on transfer completion.

Signed-off-by: Loic Poulain <7dbc6498a90ff1ada42fc224430b4f763baa5c5c@linaro.org>

kraj/zephyr,punitvara/zephyr,finikorg/zephyr,explora26/zephyr,finikorg/zephyr,galak/zephyr,kraj/zephyr,galak/zephyr,galak/zephyr,ldts/zephyr,nashif/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,zephyriot/zephyr,Vudentz/zephyr,GiulianoFranchetto/zephyr,GiulianoFranchetto/zephyr,GiulianoFranchetto/zephyr,kraj/zephyr,galak/zephyr,mbolivar/zephyr,zephyrproject-rtos/zephyr,punitvara/zephyr,zephyrproject-rtos/zephyr,mbolivar/zephyr,ldts/zephyr,galak/zephyr,nashif/zephyr,punitvara/zephyr,Vudentz/zephyr,Vudentz/zephyr,ldts/zephyr,Vudentz/zephyr,punitvara/zephyr,mbolivar/zephyr,kraj/zephyr,GiulianoFranchetto/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr,mbolivar/zephyr,finikorg/zephyr,GiulianoFranchetto/zephyr,ldts/zephyr,nashif/zephyr,mbolivar/zephyr,explora26/zephyr,explora26/zephyr,zephyriot/zephyr,Vudentz/zephyr,explora26/zephyr,zephyriot/zephyr,finikorg/zephyr,nashif/zephyr,explora26/zephyr,zephyriot/zephyr,nashif/zephyr,Vudentz/zephyr,zephyriot/zephyr,punitvara/zephyr,ldts/zephyr,kraj/zephyr