x86/mce: Spell "panicked" correctly

We need the additional "k" to make it a hard-c:

  https://en.wiktionary.org/wiki/panicked



Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1417642605-15730-1-git-send-email-bp@alien8.de


Signed-off-by: Ingo Molnar <mingo@kernel.org>