[PATCH] tpm_tis: use resource_size_t

Fix the start and len variables that should be using the new
resource_size_t.

Signed_off_by: Kylene Hall <kjhall@us.ibm.com>

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>