cpu/x86: Wrap lines at 80 columns

Fix the following warning detected by checkpatch.pl:

WARNING: line over 80 characters

TEST=Build and run on Galileo Gen2

Change-Id: I56ea28826963403dc0719f40c13782c56dc97feb
Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Reviewed-on: https://review.coreboot.org/18844
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

src/cpu/x86/mtrr/mtrr.c

@@ -17,7 +17,8 @@
  *	GNU General Public License for more details.
  *
  *
- * Reference: Intel Architecture Software Developer's Manual, Volume 3: System Programming
+ * Reference: Intel Architecture Software Developer's Manual, Volume 3: System
+ * Programming
  */
 
 #include <stddef.h>
@@ -198,8 +199,8 @@ static struct memranges *get_physical_address_space(void)
 		 * resources are appropriate for this MTRR type. */
 		match = IORESOURCE_PREFETCH;
 		mask |= match;
-		memranges_add_resources_filter(addr_space, mask, match, MTRR_TYPE_WRCOMB,
-					       filter_vga_wrcomb);
+		memranges_add_resources_filter(addr_space, mask, match,
+					MTRR_TYPE_WRCOMB, filter_vga_wrcomb);
 
 		/* The address space below 4GiB is special. It needs to be
 		 * covered entirely by range entries so that MTRR calculations