maa: add maa_set_priority call

Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>

api/maa.h

@@ -195,6 +195,17 @@ maa_result_t maa_init() __attribute__((constructor));
 maa_result_t maa_init();
 #endif
 
+/**
+ * This function attempts to set the maa process to a given priority and the
+ * scheduler to SCHED_RR. Highest * priority is typically 99 and minimum is 0.
+ * This function * will set to MAX if * priority is > MAX. Function will return
+ * -1 on failure.
+
+ * @param priority Value from typically 0 to 99
+ * @return The priority value set
+ */
+int maa_set_priority(const unsigned int priority);
+
 /** Get the version string of maa autogenerated from git tag
  *
  * The version returned may not be what is expected however it is a reliable