Although normally it only warns about it, under some circumstances,
aclocal can error out if this directory doesn't exist.
Reported-by: John Lumby <johnlumby@hotmail.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Using common defaults will reduce errors and maintenance.
Only the very small or inexistent custom section need periodic maintenance
when the structure of the component changes. Do not edit defaults.
