* vmeUniverse/vme_am_defs.h: Added address modifiers for 2eVME. Added

	flags for 2eSST and DBW16.

	* vmeUniverse/vmeUniverse.h: Removed AM definitions and include vme_am_defs.h
	instead. Declare new routine vmeUniverseMapCRG(). Export 'irq manager' API
	only if __INSIDE_RTEMS_BSP__ defined. Renamed 'shared' argument to
	vmeUniverseInstallIrqMgrAlt() to 'flags' since now more options are available.
	Added new flag to install 'posted-write' workaround.

	* vmeUniverse/vmeUniverse.c: Allow BSP to override BSP_PCI2LOCAL_ADDR()
	macro. Data width of outbound port can now be restricted to 16-bit
	(if new DBW16 flag set in address modifier). Added vmeUniverseMapCRG()
	for mapping local registers onto VME. Interrupt manager now implements
	a workaround (enabled at installation time) which flushes the write-fifo
	after user ISR returns. This requires the universe's registers to be
	accessible from VME (either CSR space or CRG mapped to A16/A24/A32),
	though.

	* vmeUniverse/vmeTsi148.h: vmeTsi148ClearVMEBusErrors() now returns
	the fault address as a 32-bit address (not ulonglong anymore). The
	driver only supports 32-bit addresses. Declare new routine vmeTsi148MapCRG().
	Export 'irq manager' API only if __INSIDE_RTEMS_BSP__ defined.
	Renamed 'shared' argument to vmeTsi148InstallIrqMgrAlt() to 'flags'
	to allow more options to be supported. Added comments explaining the
	'posted-write' workaround implemented by the interrupt manager.

	* vmeUniverse/vmeTsi148.c: Clear 'SYSFAIL' during initialization.
	Allow BSP to override BSP_PCI2LOCAL_ADDR() macro. Added support for
	2eSST when configuring windows (untested - I have no 2eSST).
	Added vmeTsi148MapCRG() for mapping local registers onto VME.
	Implemented 'posted-write' workaround for interrupt manager
	(consult source for details).

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