linux-imx

arch/tile: avoid unused variable warning in proc.c for tilegx

Until we push the unaligned access support for tilegx, it's silly
to have arch/tile/kernel/proc.c generate a warning about an unused
variable.  Extend the #ifdef to cover all the code and data for now.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>