Avoid syscall(2) usage

Index: lib/libv4l-mplane/libv4l-mplane.c
--- lib/libv4l-mplane/libv4l-mplane.c.orig
+++ lib/libv4l-mplane/libv4l-mplane.c
@@ -35,13 +35,18 @@
 
 #include "libv4l-plugin.h"
 
+#ifdef CONFIG_SYS_WRAPPER
+#define SYS_IOCTL	ioctl
+#define SYS_READ	read
+#define SYS_WRITE	write
+#else
 #define SYS_IOCTL(fd, cmd, arg) \
 	syscall(SYS_ioctl, (int)(fd), (unsigned long)(cmd), (void *)(arg))
 #define SYS_READ(fd, buf, len) \
 	syscall(SYS_read, (int)(fd), (void *)(buf), (size_t)(len));
 #define SYS_WRITE(fd, buf, len) \
 	syscall(SYS_write, (int)(fd), (const void *)(buf), (size_t)(len));
-
+#endif
 
 #if HAVE_VISIBILITY
 #define PLUGIN_PUBLIC __attribute__ ((visibility("default")))