[IA64] efi.c Spelling/punctuation fixes

Incorporates the suggestions from Peter Chubb the last time I submitted
this.  This called for using the same verb tense in the couple of preceding
comments as well.

Signed-off-by: Aron Griffis <aron@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
1 file changed