first is some trivial cleanup in ia64/kernel/acpi.c (no need to
initialize automatics that are immediately assigned, don't
check for "0 == __va(x)", don't bail out of acpi_boot_init
on errors in MADT parsing (we might still be able to get
good stuff from SPCR, etc)).

The second applies on top of the first and cleans up legacy
keyboard detection by using the 8042 bit in the FADT boot
architecture flags.  I think it's a little cleaner than the current
"#ifdef CONFIG_IA64" approach in pc_keyb.c.