Set default colors for tick faces

* lisp/faces.el (line-number-major-tick, line-number-minor-tick):
Set default color different from `line-number' so after customizing
the tick number variables, the ticks are immediately visible.
Suggested by Juri Linkov <juri@linkov.net>.
1 job for master in 52 minutes and 49 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
failed #3665
test-all

00:52:49

 
Name Stage Failure
failed
test-all Test
Makefile:319: recipe for target 'check-doit' failed
make[2]: *** [check-doit] Error 1
make[2]: Leaving directory '/builds/emacs/emacs/test'
Makefile:294: recipe for target 'check-expensive' failed
make[1]: *** [check-expensive] Error 2
make[1]: Leaving directory '/builds/emacs/emacs/test'
Makefile:959: recipe for target 'check-expensive' failed
make: *** [check-expensive] Error 2
ERROR: Job failed: exit code 1