PCI/IDE: Fix reading a wrong reg for unused sel stream initialization

During pci_ide_init(), it will write PCI_ID_RESERVED_STREAM_ID into all
unused selective IDE stream blocks. In a selective IDE stream block, IDE
stream ID field is in selective IDE stream control register instead of
selective IDE stream capability register.

Fixes: 079115370d00 ("PCI/IDE: Initialize an ID for all IDE streams")
Signed-off-by: Li Ming <[e-mail]>
Acked-by: Bjorn Helgaas <[e-mail]>
Reviewed-by: Xu Yilun <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Dan Williams <[e-mail]>

drivers/pci/ide.c

···
 	for (u16 i = 0; i < nr_streams; i++) {
 		int pos = __sel_ide_offset(ide_cap, nr_link_ide, i, nr_ide_mem);
 
-		pci_read_config_dword(pdev, pos + PCI_IDE_SEL_CAP, &val);
+		pci_read_config_dword(pdev, pos + PCI_IDE_SEL_CTL, &val);
 		if (val & PCI_IDE_SEL_CTL_EN)
 			continue;
 		val &= ~PCI_IDE_SEL_CTL_ID;