Bluetooth: Classic: SDP: Check max attr byte count for req and rsp

In the SDP specification, the `MaximumAttributeByteCount` of SA and
SSA should be in range 0x0007-0xffff. But in the current
implementation, this value is not checked both SDP server and client
sides.

Check the `MaximumAttributeByteCount` when receiving the SA or SSA
request on SDP server side.

Check the tail room of the receiving buffer before sending the SA or
SSA request on SDP client side.

Signed-off-by: Lyle Zhu <lyle.zhu@nxp.com>