x86/mce: Clean up TP_printk() output line of the 'mce_record' tracepoint

 - Only capitalize entries where that makes sense
 - Print separate values separately
 - Rename 'PROCESSOR' to vendor & CPUID

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Avadhut Naik <avadhut.naik@amd.com>
Cc: "Tony Luck" <tony.luck@intel.com>
Link: https://lore.kernel.org/r/ZgZpn/zbCJWYdL5y@gmail.com