amd64_edac: Cleanup return type of amd64_determine_edac_cap()

Sparse complains that edac_cap was declared as dev_type and we are
returning edac_type.  Historically, edac_type was correct but since
then we have changed it to return a bit field.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: http://lkml.kernel.org/r/20111006063025.GA2615@mwandaSigned-off-by: Borislav Petkov <borislav.petkov@amd.com>

drivers/edac/amd64_edac.c

@@ -768,10 +768,10 @@ static int get_channel_from_ecc_syndrome(struct mem_ctl_info *, u16);
  * Determine if the DIMMs have ECC enabled. ECC is enabled ONLY if all the DIMMs
  * are ECC capable.
  */
-static enum edac_type amd64_determine_edac_cap(struct amd64_pvt *pvt)
+static unsigned long amd64_determine_edac_cap(struct amd64_pvt *pvt)
 {
 	u8 bit;
-	enum dev_type edac_cap = EDAC_FLAG_NONE;
+	unsigned long edac_cap = EDAC_FLAG_NONE;
 
 	bit = (boot_cpu_data.x86 > 0xf || pvt->ext_model >= K8_REV_F)
 		? 19