[U-Boot] pci modify [.l .w .b]

[U-Boot] pci modify [.l .w .b]

[Steven Seeger]

Hi list. 

If a pci modify command is issued, do_pci() takes the size specifier (.l, .w, 
.b) and turns it into one of PCI_SIZE_8, PCI_SIZE_16, or PCI_SIZE_32, which 
correspond to 0, 1, and 2.

Consequently, the address increment moves at 0, 1, or 2 bytes.

This would be a trivial patch for me to make, but before I do that I wanted to 
make sure that this was not the desired behavior, or that I am not missing 
something.

Thanks,
Steven