[PATCH] use pci_request_regions in amplc_pci224 driver

Hi,

Here's a change to my new amplc_pci224 driver to use pci_request_regions 
instead of check_region/request_region, as suggested by Frank.

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-=( Ian Abbott _at_ MEV Ltd.    E-mail: <abbotti_at_mev.co.uk>        )=-
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