FS-7967 SmartOS compatibility

configure.ac: honor NetBSD and SmartOS in search for system lua
src/switch_utf8.c: remove switch_u8_vprintf and switch_u8_printf
replace u_int32_t with C99 standard uint32_t, and also the same for
  8,16,64 bit

src/mod/applications/mod_mp4/mod_mp4.cpp

@@ -266,7 +266,7 @@ static void *SWITCH_THREAD_FUNC play_video_function(switch_thread_t *thread, voi
 {
 	AVParams * pt = reinterpret_cast<AVParams*>(obj);
 	u_int next = 0, first = 0xffffffff;
-	u_int64_t ts = 0, control = 0;
+	uint64_t ts = 0, control = 0;
 
 	bool ok;
 	bool sent = true;
@@ -323,7 +323,7 @@ static void *SWITCH_THREAD_FUNC play_audio_function(switch_thread_t *thread, voi
 {
 	AVParams * pt = reinterpret_cast<AVParams*>(obj);
 	u_int next = 0, first = 0xffffffff;
-	u_int64_t ts = 0, control = 0;
+	uint64_t ts = 0, control = 0;
 
 	bool ok;
 	bool sent = true;

src/mod/applications/mod_mp4/mp4_helper.cpp

@@ -129,7 +129,7 @@ namespace MP4
 		}
 
 		ts = rt.last_frame;
-		if (!MP4ReadRtpPacket(fh, hint, rt.packet, (u_int8_t **) &buffer, &size, 0, header, true)) return false;
+		if (!MP4ReadRtpPacket(fh, hint, rt.packet, (uint8_t **) &buffer, &size, 0, header, true)) return false;
 		++rt.packet;
 		return true;
 	}

src/mod/applications/mod_mp4/mp4_helper.hpp

@@ -56,10 +56,10 @@ namespace MP4
 	};
 	
 	struct RuntimeProperties {
-		u_int32_t frame; // sampleID
-		u_int16_t packetsPerFrame;
-		u_int16_t packet; // packetID
-		u_int32_t last_frame; // timestamp
+		uint32_t frame; // sampleID
+		uint16_t packetsPerFrame;
+		uint16_t packet; // packetID
+		uint32_t last_frame; // timestamp
 
 		RuntimeProperties(): frame(0), packetsPerFrame(0), packet(0)
 		{
@@ -72,9 +72,9 @@ namespace MP4
 		MP4TrackId track;
 
 		char * codecName;
-		u_int8_t payload;
-		u_int32_t clock;
-		u_int32_t packetLength; // packet Length in time (ms)
+		uint8_t payload;
+		uint32_t clock;
+		uint32_t packetLength; // packet Length in time (ms)
 		
 		RuntimeProperties runtime;