Allow make 3.82 to be used under Cygwin 1.7

OTOH, should we just allow the expression to be >= 3.81
for all platforms? For cygwin it's a specific case since
we don't build the platform, only a handful set of tools
and it works just fine with a newer make 3.82.

Change-Id: Icff0d0e13bce79f7164007985f14db56e9049552