x86: rename intel_mp_floating to mpf_intel

Impact: cleanup, solve 80 columns wrap problems

intel_mp_floating should be renamed to mpf_intel.

The reason: the 'f' in MPF already means 'floating'
which means MP Floating pointer structure -
no need to repeat that in the type name.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>