PCI: qcom: Enable async probe by default

Qcom PCIe RC driver waits for the PHY link to be up during the probe;
this consumes several milliseconds during boot.

Enable async probe by default so that other drivers can load in parallel
while this driver waits for the link to be up.
Suggested-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230320064644.5217-1-manivannan.sadhasivam@linaro.orgTested-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>

drivers/pci/controller/dwc/pcie-qcom.c

@@ -1642,6 +1642,7 @@ static struct platform_driver qcom_pcie_driver = {
 		.suppress_bind_attrs = true,
 		.of_match_table = qcom_pcie_match,
 		.pm = &qcom_pcie_pm_ops,
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 };
 builtin_platform_driver(qcom_pcie_driver);