tpm_tis: fix build warning with tpm_tis_resume

drivers/char/tpm/tpm_tis.c:838: warning: ‘tpm_tis_resume’ defined but
not used

Reported-by: James Morris <jmorris@namei.org>
Fixes: 00194826e6be ("tpm_tis: Clean up the force=1 module parameter")
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
cc: stable@vger.kernel.org

drivers/char/tpm/tpm_tis.c

@@ -814,6 +814,7 @@ out_err:
 	return rc;
 }
 
+#ifdef CONFIG_PM_SLEEP
 static void tpm_tis_reenable_interrupts(struct tpm_chip *chip)
 {
 	u32 intmask;
@@ -855,6 +856,7 @@ static int tpm_tis_resume(struct device *dev)
 
 	return 0;
 }
+#endif
 
 static SIMPLE_DEV_PM_OPS(tpm_tis_pm, tpm_pm_suspend, tpm_tis_resume);