char: tpm: fix kerneldoc tpm2_unseal_trusted name typo

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>

drivers/char/tpm/tpm2-cmd.c

@@ -680,7 +680,7 @@ static int tpm2_unseal_cmd(struct tpm_chip *chip,
 }
 
 /**
- * tpm_unseal_trusted() - unseal the payload of a trusted key
+ * tpm2_unseal_trusted() - unseal the payload of a trusted key
  * @chip_num: TPM chip to use
  * @payload: the key data in clear and encrypted form
  * @options: authentication values and other options