x86: coding style fixes to arch/x86/kernel/msr.c

Before:
   total: 2 errors, 0 warnings, 231 lines checked
After:
   total: 0 errors, 0 warnings, 231 lines checked

No code changed:

arch/x86/kernel/msr.o:

   text	   data	    bss	    dec	    hex	filename
   1199	     12	      4	   1215	    4bf	msr.o.before
   1199	     12	      4	   1215	    4bf	msr.o.after

md5:
   604be0d07d829bc52a9346babd084bdc  msr.o.before.asm
   604be0d07d829bc52a9346babd084bdc  msr.o.after.asm

Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>