tools: Fixes following build syscall change.

src/tools/fs_shell/fcntl.cpp

@@ -18,6 +18,7 @@ using namespace FSShell;
 
 #if (!defined(__BEOS__) && !defined(__HAIKU__))
 	// The _kern_open() defined in libroot_build.so.
+#	define _kern_open	_kernbuild_open
 	extern "C"  int _kern_open(int fd, const char *path, int openMode,
 		int perms);
 #endif

src/tools/fs_shell/stat.cpp

@@ -23,6 +23,7 @@ using FSShell::to_platform_mode;
 
 #if (!defined(__BEOS__) && !defined(__HAIKU__))
 	// The _kern_read_stat() defined in libroot_build.so.
+#	define _kern_read_stat	_kernbuild_read_stat
 	extern "C" status_t _kern_read_stat(int fd, const char *path,
 		bool traverseLink, struct stat *st, size_t statSize);
 #endif

src/tools/fs_shell/unistd.cpp

@@ -43,7 +43,11 @@
 
 
 #if (!defined(__BEOS__) && !defined(__HAIKU__))
-#	include "syscalls.h"
+	// Defined in libroot_build.so.
+#	define _kern_dup	_kernbuild_dup
+#	define _kern_close	_kernbuild_close
+	extern "C" int _kern_dup(int fd);
+	extern "C" status_t _kern_close(int fd);
 #endif
 
 

src/tools/unzip/unix/unxcfg.h

@@ -30,6 +30,7 @@
 #  endif
 
 #  define HAIKU_USE_KERN_OPEN 1
+#	define _kern_open	_kernbuild_open
 extern int _kern_open(int fd, const char *path, int openMode, int perms);
 
 #endif	// !__BEOS__