[Perl/perl5] 4984cb: perl.h - move defines out of incorrect ifdef

[Yves Orton via perl5-changes]

  Branch: refs/heads/yves/move_endif
  Home:   https://github.com/Perl/perl5
  Commit: 4984cb5d8ae2615a762a0ed4e5cca7e66969271a
      
https://github.com/Perl/perl5/commit/4984cb5d8ae2615a762a0ed4e5cca7e66969271a
  Author: Yves Orton <demer...@gmail.com>
  Date:   2022-08-26 (Fri, 26 Aug 2022)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  perl.h - move defines out of incorrect ifdef

Not sure how that happened in the original commit, but the
PERL_RAND_SEED related defines should not be conditional on anything
related to doubles.