btsnoop: Fix btsnoop_net runs unexpected

By default, btsnoop_net was disabled using "BT_NET_DEBUG" macro.
But, it enabled actually and manages socket connection for sending
btsnoop logs. The reason was, TRUE/FALSE macro were not defined.
This fix including "bt_types.h" to work macro properly.

Bug: 154647071
Test: Turn on btsnoop logging and observe btsnoop_net runs or not.

Signed-off-by: KimJeongYeon <jeongyeon.kim@samsung.com>

Change-Id: I595d06510170d27fbf81068fa7ce8769eabd0992
Merged-In: I595d06510170d27fbf81068fa7ce8769eabd0992
(cherry picked from commit bc6072c798a597624bda3e999c3432d384d851a0)