phy: st: spear: drop of_match_ptr for ID table

The driver can match only via the DT table so the table should be always
used and the of_match_ptr does not have any sense (this also allows ACPI
matching via PRP0001, even though it might not be relevant here).  This
also fixes !CONFIG_OF error:

  drivers/phy/st/phy-spear1310-miphy.c:172:34: error: ‘spear1310_miphy_of_match’ defined but not used [-Werror=unused-const-variable=]
  drivers/phy/st/phy-spear1340-miphy.c:182:34: error: ‘spear1340_miphy_of_match’ defined but not used [-Werror=unused-const-variable=]

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230312132611.352654-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>

drivers/phy/st/phy-spear1310-miphy.c

@@ -246,7 +246,7 @@ static struct platform_driver spear1310_miphy_driver = {
 	.probe		= spear1310_miphy_probe,
 	.driver = {
 		.name = "spear1310-miphy",
-		.of_match_table = of_match_ptr(spear1310_miphy_of_match),
+		.of_match_table = spear1310_miphy_of_match,
 	},
 };
 

drivers/phy/st/phy-spear1340-miphy.c

@@ -279,7 +279,7 @@ static struct platform_driver spear1340_miphy_driver = {
 	.driver = {
 		.name = "spear1340-miphy",
 		.pm = &spear1340_miphy_pm_ops,
-		.of_match_table = of_match_ptr(spear1340_miphy_of_match),
+		.of_match_table = spear1340_miphy_of_match,
 	},
 };