delete px4_includes.h header and update boards/ to use syslog

src/systemcmds/tests/test_mixer.cpp

@@ -38,8 +38,10 @@
  */
 
 #include <dirent.h>
+#include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
+#include <math.h>
 
 #include <px4_config.h>
 #include <mixer/mixer.h>
@@ -397,13 +399,13 @@ bool MixerTest::mixerTest()
 
 		if (i != actuator_controls_s::INDEX_THROTTLE) {
 			if (r_page_servos[i] < r_page_servo_control_min[i]) {
-				warnx("active servo < min");
+				PX4_ERR("active servo < min");
 				return false;
 			}
 
 		} else {
 			if (r_page_servos[i] != r_page_servo_disarmed[i]) {
-				warnx("throttle output != 0 (this check assumed the IO pass mixer!)");
+				PX4_ERR("throttle output != 0 (this check assumed the IO pass mixer!)");
 				return false;
 			}
 		}

src/systemcmds/tests/test_parameters.cpp

@@ -1,6 +1,8 @@
 #include <unit_test.h>
 
 #include <px4_defines.h>
+
+#include <errno.h>
 #include <fcntl.h>
 #include <unistd.h>