[PATCH] tpm_infineon section fixup

Use __devexit_p() for the exit/remove function to protect against
discarding it.

WARNING: drivers/char/tpm/tpm_infineon.o - Section mismatch: reference to .exit.text:tpm_inf_pnp_remove from .data between 'tpm_inf_pnp' (at offset 0x20) and 'tpm_inf'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Kylene Jo Hall <kjhall@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>