vim: upgrade to 8.2 patch 3752

There's a fairly constant flow of CVEs being fixed in Vim, which are
getting increasing non-trivial to backport.

Instead of trying to backport (and potentially introduce more bugs), or
just ignoring them entirely, upgrade vim to the latest patch.

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 78a4796d)
Signed-off-by: Mingli Yu <mingli.yu@windriver.com>
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>