UBSAN: use the kernel panic message markers

Use the same splat markers as panic does for easier matching by external
tools scanning kernel dmesg for splats.

Link: https://lkml.kernel.org/r/20231218135339.23209-1-bp@alien8.de


Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>