x86/platform/intel-mid: Fix trivial printk message typo in intel_mid_arch_setup()

Change 'Uknown' to 'Unknown'

Signed-off-by: Yannick Guerrini <yguerrini@tomshardware.fr>
Cc: trivial@kernel.org
Link: http://lkml.kernel.org/r/1424710358-10140-1-git-send-email-yguerrini@tomshardware.fr


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