Fix BT Snoop log size issue

Added support for a new "truncated" mode that truncates ACL packet data
to at most 100 bytes. This is useful for devices with smaller memory.

Bug: 263323082
Bug: 189496862
Tag: #refactor
Test: Manual
Add merged-in as there is a new feature for U+ that cannot be backported
to tm-*. But we do not want this change to conflict with it
Merged-In: I4b7bb84ec2f14aff60388b10eae24d8896f61f5b
Change-Id: Ia71726d145a22b23152e03d53a9c4e1fb51cbc38
(cherry picked from commit 404a81c1a01a9fb02507d4d6219ff536dfbf652e)