tpm: add tpm_auto_startup() into tpm-interface.c

Add wrapper tpm_auto_startup() to tpm-interface.c
instead of open coded decision between TPM 1.x and TPM 2.x
in tpm-chip.c

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>

drivers/char/tpm/tpm.h

@@ -541,6 +541,7 @@ ssize_t tpm_transmit_cmd(struct tpm_chip *chip, struct tpm_space *space,
 			 size_t min_rsp_body_length, unsigned int flags,
 			 const char *desc);
 int tpm_get_timeouts(struct tpm_chip *);
+int tpm_auto_startup(struct tpm_chip *chip);
 
 int tpm1_pm_suspend(struct tpm_chip *chip, int tpm_suspend_pcr);
 int tpm1_auto_startup(struct tpm_chip *chip);