NET: emoved all includes of uip.h; added includes of ip.h wherever needed.  Tried to fix problems of the now missing sneak inclusions because uip.h was removed.  There are probably a few of these that were missed.

AMA5 OHCI: Pointers to allocated port values were not being nullified after being deallocated.  This caused some assertions when debug was enabled

SMARTFS: Increase some variables from uint16_t to uint32_t to handle larger device sizes.  From Ken Pettit

Fix for a bug that would show up if CONFIG_MTD_BYTE_WRITE was not selected and the SMART sector size was larger than the mtd device's block size (like it would be if using SMARTFS on larger flash devices).  From Ken Pettit

SAMA5 OHCI: Fix an error in a DEBUGASSERT statement.  Caused assertion to fire inappropriately when a low- or full-speed device is removed and CONFIG_DEBUG=y

SAMA5D3/4: UPLL divisor to generate 48MHz for OHCI is different from the two families.  No idea why.