build: use parameters in calls to `MAKE_DEP`

This is a small change to the behaviour of the `MAKE_DEP` macro to force
it to take its inputs as arguments, rather than assuming the variables
that its inputs come from.

Change-Id: Ibe44f19e6bea43c9feed34710cdd30704576b4d7
Signed-off-by: Chris Kay <chris.kay@arm.com>
1 file changed