libtpmtss: Initialize library from all users

Previously, only the tpm plugin initialized the library, so in order
to use a TPM 2.0 (a required TCTI library is loaded via init), it was
necessary to load it even if none of its actual features were used.

src/libtpmtss/tpm_tss.h

@@ -192,22 +192,22 @@ struct tpm_tss_t {
 };
 
 /**
- * Create a tpm_tss instance.
- *
- * @param version	TPM version that must be supported by TSS
- */
-tpm_tss_t *tpm_tss_probe(tpm_version_t version);
-
-/**
- * libtpmtss initialization function
+ * Initialize libtpmtss
  *
  * @return					TRUE if initialization was successful
  */
 bool libtpmtss_init(void);
 
 /**
- * libtpmtss de-initialization function
+ * Deinitialize libtpmtss
  */
 void libtpmtss_deinit(void);
 
+/**
+ * Create a tpm_tss instance.
+ *
+ * @param version			TPM version that must be supported by TSS
+ */
+tpm_tss_t *tpm_tss_probe(tpm_version_t version);
+
 #endif /** TPM_TSS_H_ @}*/