disabled by -D) from the output of newvers_stand.sh. Change -D to the
inverted logic, so that it adds the date to bootprog_rev in ().
Change all platforms accordingly. -D is added if MKREPRO is not yes and
wasn't present before. Platforms that didn't use -D don't depend on
MKREPRO now either.
const char bootprog_kernrev[] = "4.99.70";
For now, we still also include the builder name and date and such, so
that we don't break anything, but those are (probably) on the way out.
Part of the "bit-identical sources yield bit-identical release files"
project.
