tpm: Export tpm_clear_and_reenable()

This function is intended to be exported but is not. Add it to the header
file.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/include/tpm-common.h b/include/tpm-common.h
index 91a1484..f9c2ca2 100644
--- a/include/tpm-common.h
+++ b/include/tpm-common.h
@@ -210,6 +210,14 @@
 int tpm_close(struct udevice *dev);
 
 /**
+ * tpm_clear_and_reenable() - Force clear the TPM and reenable it
+ *
+ * @dev: TPM device
+ * @return 0 on success, -ve on failure
+ */
+u32 tpm_clear_and_reenable(struct udevice *dev);
+
+/**
  * tpm_get_desc() - Get a text description of the TPM
  *
  * @dev:	Device to check