softpll.h: added defs and prototypes for polling aux clock status

include/softpll.h

 #ifndef __SOFTPLL_H
 #define __SOFTPLL_H
 
+#define SOFTPLL_AUX_ENABLED 1
+#define SOFTPLL_AUX_LOCKED 2
+
 void softpll_enable();
 int softpll_check_lock();
 void softpll_disable();
 int softpll_busy();
 void softpll_set_phase(int ps);
 int softpll_get_setpoint();
+int softpll_get_aux_status();
 
 #endif