Due to recent changes in core teams, some have reduced in size to
the level where the 2 '+2' vote requirement to approve patches is
not sustainable anymore. This patch adds notes to the Code Submission
Guide to ease that requirement, when necessary.
Change-Id: I4982c74af658f28a9d28203d82d4e53df8cbcad4
Signed-off-by: Ildiko Vancsa <ildiko.vancsa@gmail.com>