[PATCH] tpm: Add force device probe option

Some machine manufacturers are not sticking to the TCG specifications and
including an ACPI DSDT entry for the TPM which allows PNP discovery of the
device.

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>