Fix MB calculation in the reporting of the MTRR hole

Change-Id: I34b5c4ffd2a3f3e895d2bffedce1c00ee9aea942
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: http://review.coreboot.org/763
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

src/cpu/x86/mtrr/mtrr.c

@@ -306,7 +306,7 @@ static unsigned int range_to_mtrr(unsigned int reg,
 
 	if (hole_sizek) {
 		printk(BIOS_DEBUG, "Adding hole at %ldMB-%ldMB\n",
-		       hole_startk, hole_startk + hole_sizek);
+		       hole_startk >> 10, (hole_startk + hole_sizek) >> 10);
 		reg = range_to_mtrr(reg, hole_startk, hole_sizek,
 			      next_range_startk, MTRR_TYPE_UNCACHEABLE,
 			      address_bits, above4gb);