net: phy: qcom: qca808x: Fix WoL issue by utilizing at8031_set_wol()

The previous commit unintentionally removed the code responsible for
enabling WoL via MMD3 register 0x8012 BIT5. As a result, Wake-on-LAN
(WoL) support for the QCA808X PHY is no longer functional.

The WoL (Wake-on-LAN) feature for the QCA808X PHY is enabled via MMD3
register 0x8012, BIT5. This implementation is aligned with the approach
used in at8031_set_wol().

Fixes: e58f302 ("net: phy: at803x: fix the wol setting functions")
Signed-off-by: Luo Jie <quic_luoj@quicinc.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/20250704-qcom_phy_wol_support-v1-2-053342b1538d@quicinc.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Author: Luo Jie

drivers/net/phy/qcom/qca808x.c

@@ -633,7 +633,7 @@ static struct phy_driver qca808x_driver[] = {
 	.handle_interrupt	= at803x_handle_interrupt,
 	.get_tunable		= at803x_get_tunable,
 	.set_tunable		= at803x_set_tunable,
-	.set_wol		= at803x_set_wol,
+	.set_wol		= at8031_set_wol,
 	.get_wol		= at803x_get_wol,
 	.get_features		= qca808x_get_features,
 	.config_aneg		= qca808x_config_aneg,