i5000_edac: no need to __stringify() KBUILD_BASENAME

The i5000_edac driver's PCI registration structure has the name
""i5000_edac"" (with extra set of double-quotes) which is probably not
intentional.  Get rid of __stringify.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>