Fix misc-macro-parentheses warnings in minijail

Add parentheses around macro arguments used beside operators.
Bug: 28705665
Test: build with clang-tidy

(cherry picked from commit c391b9e4f7ee76bb8d8686aadbbe49b789537dc0)

Change-Id: I4b3064cb85c3776e178cf66aceda1b387ac9c42b
Reviewed-on: https://chromium-review.googlesource.com/360258
Commit-Ready: Dylan Reid <dgreid@chromium.org>
Tested-by: Dylan Reid <dgreid@chromium.org>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
2 files changed