PCI: dw-rockchip: Endpoint mode cannot raise INTx interrupts

Neither RK3568 or RK3588 supports INTx interrupts.

Since epc_features is zero initialized, this is strictly not needed.
However, setting intx_capable explicitly to false makes it more clear
that neither RK3568 or RK3588 supports INTx interrupts.

No functional change.

Signed-off-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Link: https://lore.kernel.org/r/20250310111016.859445-14-cassel@kernel.org

Author: floatious

drivers/pci/controller/dwc/pcie-dw-rockchip.c

@@ -272,6 +272,7 @@ static const struct pci_epc_features rockchip_pcie_epc_features_rk3568 = {
 	.linkup_notifier = true,
 	.msi_capable = true,
 	.msix_capable = true,
+	.intx_capable = false,
 	.align = SZ_64K,
 	.bar[BAR_0] = { .type = BAR_FIXED, .fixed_size = SZ_1M, },
 	.bar[BAR_1] = { .type = BAR_FIXED, .fixed_size = SZ_1M, },
@@ -292,6 +293,7 @@ static const struct pci_epc_features rockchip_pcie_epc_features_rk3588 = {
 	.linkup_notifier = true,
 	.msi_capable = true,
 	.msix_capable = true,
+	.intx_capable = false,
 	.align = SZ_64K,
 	.bar[BAR_0] = { .type = BAR_FIXED, .fixed_size = SZ_1M, },
 	.bar[BAR_1] = { .type = BAR_FIXED, .fixed_size = SZ_1M, },