PCI: cadence: Lower severity of message when phy-names property is absent in DTS

The "phy-names" property is optional, so the message indicating its
absence during the probe should be of "info" severity rather than
"error" severity.

Link: https://lore.kernel.org/r/20241018113045.2050295-1-bwawrzyn@cisco.com
Signed-off-by: Bartosz Wawrzyniak <bwawrzyn@cisco.com>
[kwilczynski: update log messages wording, commit log]
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>

Author: Bartosz Wawrzyniak

drivers/pci/controller/cadence/pcie-cadence.c

@@ -197,7 +197,7 @@ int cdns_pcie_init_phy(struct device *dev, struct cdns_pcie *pcie)
 
 	phy_count = of_property_count_strings(np, "phy-names");
 	if (phy_count < 1) {
-		dev_err(dev, "no phy-names.  PHY will not be initialized\n");
+		dev_info(dev, "no \"phy-names\" property found; PHY will not be initialized\n");
 		pcie->phy_count = 0;
 		return 0;
 	}
@@ -260,7 +260,7 @@ static int cdns_pcie_resume_noirq(struct device *dev)
 
 	ret = cdns_pcie_enable_phy(pcie);
 	if (ret) {
-		dev_err(dev, "failed to enable phy\n");
+		dev_err(dev, "failed to enable PHY\n");
 		return ret;
 	}