os/syscall: Fixes build error when sched info logs enabled from menuc…

…onfig for rtl8730e

Building loadable apps or loadable ext with sched info logs enabled for RTL8730e results in error for undefined symbol g_funcnames:

arm-none-eabi-ld: /root/tizenrt/os/../build/output/libraries/libkarch.a(arm_syscall.o): in function `dump_syscall':
/root/tizenrt/os/arch/arm/src/armv7-a/arm_syscall.c:93: undefined reference to `g_funcnames'

This commit fixes the error by removing enclosing #if defined __KERNEL__ directive and unused headers so that g_funcnames definitions is not excluded by the pre-processor.

os/syscall/syscall_names.c

@@ -41,49 +41,8 @@
 
 #include <tinyara/config.h>
 
-#if defined(CONFIG_LIB_SYSCALL) && defined(__KERNEL__)
+#if defined(CONFIG_LIB_SYSCALL)
 #include <syscall.h>
-#include <sys/stat.h>
-#include <sys/wait.h>
-#include <sys/ioctl.h>
-#include <sys/time.h>
-#include <sys/select.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <sys/statfs.h>
-#include <sys/prctl.h>
-#include <sys/socket.h>
-#include <sys/mount.h>
-#include <sys/boardctl.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <dirent.h>
-#include <poll.h>
-#include <time.h>
-#include <sched.h>
-#include <pthread.h>
-#include <semaphore.h>
-#include <signal.h>
-#include <mqueue.h>
-#include <assert.h>
-
-/* Errno access is awkward. We need to generate get_errno() and set_errno()
- * interfaces to support the system calls, even though we don't use them
- * ourself.
- *
- * The "normal" pre-processor definitions for these functions is in errno.h
- * but we need the internal function prototypes in include/errno.h.
- */
-
-#undef get_errno
-#undef set_errno
-
-#include <tinyara/errno.h>
-#include <tinyara/clock.h>
-
 
 /****************************************************************************
  * Public Data
@@ -102,4 +61,4 @@ const char *g_funcnames[SYS_nsyscalls] =
 #  define SYSCALL_LOOKUP(f, n, p)  #f
 #  include "syscall_lookup.h"
 };
-#endif /* CONFIG_LIB_SYSCALL && __KERNEL__ */
+#endif /* CONFIG_LIB_SYSCALL */