security: add fusermount to fscap whitelist

Add fusermount to fscap whitelist and remove it from the setuid
binary exceptions list since CL:284710 replaces the use of the
setuid bit with the CAP_SYS_ADMIN file capability.

CQ-DEPEND=CL:284710
BUG=chromium:508744
TEST=cbuildbot --remote -g 285124 -g 284710 samus-paladin

Change-Id: Ic7ef5a89812301b5a5d5bba99b8ca372c210bc79
Reviewed-on: https://chromium-review.googlesource.com/285124
Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
Tested-by: Samuel Tan <samueltan@chromium.org>
Commit-Queue: Samuel Tan <samueltan@chromium.org>
2 files changed