ath79: fix OCEDO Raccoon 10Mbit PLL value

This corrects the PLL value for 10 Mbit/s links on the OCEDO Raccoon.
Prior to this patch, 10 Mbit/s links would not transmit data.

It is worth mentioning that the vendor firmware used the same PLL
settings and 10Mbit/s was also not working there.

All other link-modes are working correctly without any packet loss.

Signed-off-by: David Bauer <mail@david-bauer.net>

target/linux/ath79/dts/ar9344_ocedo_raccoon.dts

@@ -169,8 +169,7 @@
 &eth0 {
 	status = "okay";
 
-	/* default for ar934x, except for 1000M */
-	pll-data = <0x06000000 0x00000101 0x00001616>;
+	pll-data = <0x06000000 0x00000101 0x00001313>;
 
 	mtd-mac-address = <&art 0x0>;