regen_makefile.sh: Fix TITAN 6.1.0 support

When introducing the rewriting for 6.3.0 we broke the 6.1.0 support.
Now the result should build on Debian with both 6.1.0 and 6.3.0

Change-Id: I263a6abd2d9eb15ce5778ef8dbfcdac2a228b77d
8 files changed