bug: Clean up CONFIG_GENERIC_BUG_RELATIVE_POINTERS
Three repeated CONFIG_GENERIC_BUG_RELATIVE_POINTERS #ifdefs right
after one another yields unreadable code. Add a helper.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20251110115757.341703850@infradead.org