[PATCH] panic.c: export panic_on_oops

[Alan Cox]

> See my reply to David Woodhouse, i think we should add support for 
> buffering in kernel/printk.c and that would both fix your problems, 
> would simplify the driver (significantly!) and would expose the generic 
> buffering capability to other console drivers as well.

Buffering printk in general is bad. Given a driver needs only to provide
about 6 lines of code using a kfifo is it really that hard for the odd
code that wants to buffer to do that ?