mainboard/amd/mandolin: describe where the two HDA codecs reside

Change-Id: I99b062e4ce1cf862ea03b0edb6ea843df5f8f2b2
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43359
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/mainboard/amd/mandolin/hda_verb.c

@@ -3,7 +3,7 @@
 #include <device/azalia_device.h>
 
 const u32 cim_verb_data[] = {
-	/* Realtek ALC701 */
+	/* Realtek ALC701 on mainboard */
 	0x10ec0701,
 	0x00000000,
 	0x00000016,
@@ -35,7 +35,7 @@ const u32 cim_verb_data[] = {
 	0x02050010, 0x02040420, 0x01470c00, 0x02050036, // Dos beep path - 1
 	0x02047151, 0x01470740, 0x0143b000, 0x01470c02, // Dos beep path - 2
 
-	/* Realtek ALC285 */
+	/* Realtek ALC285 on extension card */
 	0x10ec0285,
 	0x00000000,
 	0x00000028,