tpm: add a helper to iterate on all tpm devices

This add a helper for_each_tpm_device that run
through all the tpm (1.x and 2.0) devices.
Signed-off-by: NPhilippe Reynes <philippe.reynes@softathome.com>
Reviewed-by: NMiquel Raynal <miquel.raynal@bootlin.com>

include/tpm-common.h

@@ -293,4 +293,7 @@ static inline cmd_tbl_t *get_tpm2_commands(unsigned int *size)
  */
 enum tpm_version tpm_get_version(struct udevice *dev);
 
+/* Iterate on all TPM devices */
+#define for_each_tpm_device(dev) uclass_foreach_dev_probe(UCLASS_TPM, (dev))
+
 #endif /* __TPM_COMMON_H */