Tests: Fix RunCMake.ExternalProject filesystem delay for Borland Makefiles

Our 1.125s delay does not seem to be long enough to be reliable with
the Borland "make" tool.  Use a longer delay for Borland and Watcom.

Follow the pattern from commit 67040500ea (Tests: Fix
RunCMake.BuildDepends filesystem delay for Borland Makefiles,
2015-09-25, v3.4.0-rc1~38^2).