PCI/MSI: Fix cut-and-paste errors in documentation

Function pci_enable_msi_range() is used in examples where
pci_enable_msix_range() should have been used instead.
Reported-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

Documentation/PCI/MSI-HOWTO.txt

@@ -274,7 +274,7 @@ possible, likely up to the limit returned by pci_msix_vec_count() function:
 
 static int foo_driver_enable_msix(struct foo_adapter *adapter, int nvec)
 {
-	return pci_enable_msi_range(adapter->pdev, adapter->msix_entries,
+	return pci_enable_msix_range(adapter->pdev, adapter->msix_entries,
 				     1, nvec);
 }
 
@@ -286,7 +286,7 @@ In this case the function could look like this:
 
 static int foo_driver_enable_msix(struct foo_adapter *adapter, int nvec)
 {
-	return pci_enable_msi_range(adapter->pdev, adapter->msix_entries,
+	return pci_enable_msix_range(adapter->pdev, adapter->msix_entries,
 				     FOO_DRIVER_MINIMUM_NVEC, nvec);
 }
 
@@ -299,7 +299,7 @@ parameters:
 
 static int foo_driver_enable_msix(struct foo_adapter *adapter, int nvec)
 {
-	return pci_enable_msi_range(adapter->pdev, adapter->msix_entries,
+	return pci_enable_msix_range(adapter->pdev, adapter->msix_entries,
 				     nvec, nvec);
 }