MISRAC2012-Rule-12.1: add suggested parentheses

l2cap: fix build

l2cap: return ERROR_CODE_SUCCESS instead of 0 as status [a2378]

l2cap: send ertm i-frames round robin with other data packets

l2cap: send le data channel sdus round robin with att packets

l2cap: update comment (timers are always stopped by l2cap_free_channel_entry)

bluetooth: rename BD_ADDR_TYPE_CLASSIC to BD_ADDR_TYPE_ACL

l2cap-ertm: disconnect if ERTM mandatory but remote didn't send Retransmission and Flow Control option in Config Request

l2cap-ertm: use Retransmission and Flowcontrol options in Config Response only if used in Config Request

l2cap-ertm: use Retransmission and Flow Control options for ERTM only if supported by remote and channel ready to use it

l2cap-ertm: emit L2CAP_EVENT_ERTM_BUFFER_RELEASED for remote without ERTM support only if ERTM was requested by client

fix warnings

l2cap-ertm: release ertm buffer if ertm not supported by remote

l2cap-ertm: reject incoming connection if ERTM is configured as mandatory but not supported by remote

l2cap-ertm: on information response verify ertm requirements for outgoing connection only

bluetooth_psm: replace prefix PSM_ with BLUEOOTH_PSM_

l2cap: extract internal types and definitions from bluetooth.h

l2cap-ertm: assert that packet can be stored in fragment buffers in ertm

l2cap: handle l2cap local cid overrun, assert local cid is unique

l2cap: move get next channel ID and next signaling sequence num to l2cap

l2cap: handle negative and invalid information requests during ERTM config

l2cap: limit fragments by remote_mps, send first fragment fully

l2cap: stop ertm timers in l2cap_free_channel_entry

l2cap: stop rtx/ertx timer in l2cap_free_channel_entry

l2cap: use l2cap_free_channel_entry to free channel entry