3rdparty/libsamplerate: renamed config.h to src_config.h

We must not have any file called config.h in directories which are added
to global include directories. For example when building the CALF plugin
the file config.h from libsamplerate was used rather than CALF's local
one. Fixes missing LADSPA symbols in CALF library if no usable
libsamplerate was found in the system at configure time.

Also bumped version number in src_config.h.

src/3rdparty/samplerate/float_cast.h

@@ -45,7 +45,7 @@
 **		long int lrint  (double x) ;
 */
 
-#include "config.h"
+#include "src_config.h"
 
 /*
 **	The presence of the required functions are detected during the configure

src/3rdparty/samplerate/samplerate.c

@@ -26,7 +26,7 @@
 #include	<stdlib.h>
 #include	<string.h>
 
-#include	"config.h"
+#include	"src_config.h"
 
 #include	"samplerate.h"
 #include	"float_cast.h"

src/3rdparty/samplerate/src_config.h

@@ -5,4 +5,4 @@
 #endif
 
 #define PACKAGE "libsamplerate"
-#define VERSION "0.1.4"
+#define VERSION "0.1.7"

src/3rdparty/samplerate/src_linear.c

@@ -26,7 +26,7 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include "config.h"
+#include "src_config.h"
 #include "float_cast.h"
 #include "common.h"
 

src/3rdparty/samplerate/src_sinc.c

@@ -26,7 +26,7 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include "config.h"
+#include "src_config.h"
 #include "float_cast.h"
 #include "common.h"
 

src/3rdparty/samplerate/src_zoh.c

@@ -26,7 +26,7 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include "config.h"
+#include "src_config.h"
 #include "float_cast.h"
 #include "common.h"