um: Add HAVE_DEBUG_BUGVERBOSE

This option restores the DEBUG_BUGVERBOSE functionality as it was
previous to commit 9a93848fe787 ("x86/debug: Implement __WARN() using
UD0").

Signed-off-by: Hernán Gonzalez <hernan@vanguardiasur.com.ar>
Signed-off-by: Richard Weinberger <richard@nod.at>
1 file changed