[PATCH] Update PA-RISC IOSAPIC driver

 - Fix all ioremap abuse noticed by CONFIG_DEBUG_IOREMAP on an N4000.
 - F_EXTEND doesn't do what I thought it did on a 32-bit box.
 - New calling convention for txn_alloc_irq()
 - Replace CONFIG_PARISC64 with CONFIG_64BIT
 - Ensure alignment of the irt buffer to 8 bytes even when slab debugging
   is enabled
Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>