SAMA5: On some hardware, reconfiguring the PLL while executing out of NOR FLASH causes crashes.  This was fixed by David Sidrane by implementing RAM functions. The killer code is copied and executed from ISRAM and the crash is avoided.

If LOWVECTORS is selected, then we need to clear the VBAR register.  A bootloader may have left the VBAR in an bad state

SAMA5D3x-EK: Change name of all board-specific configuration variables so that there are no collisions with names of similar variables for other boards

SAM4E-EK:  Remove bogus LCD driver; replace with information that might be useful to someone who wants to develop an LCD driver for the SAM4E-EK

For all configurations that have the default pthread stacksize set to some other value than 2048 AND which have the USB MSC device class enabled, add a definition of CONFIG_USBMSC_SCSI_STACKSIZE so that the size of the stack used by USB MSC SCSI worker thread does not increase

apps/system/usbmsc:  Back out kludge that is no longer needed with the recent fix to the USB MSC class

Add missing HSCMI configuration options; Make HSMCI configuration naming more compatible; Fix HSCMI clocking to use the CLKODD bit