net: macb: Updated resource allocation function calls to new version of API.

Changed function calls of resource allocation to new API. Changed way
of setting DMA mask. Removed unnecessary sanity check.
This patch is sent in regard to recently applied patch
Commit 83a77e9e
net: macb: Added PCI wrapper for Platform Driver.

Signed-off-by: Bartosz Folta <bfolta@cadence.com>
Signed-off-by: David S. Miller <davem@davemloft.net>