Kernel: Move headers intended for userspace use into Kernel/API/

Userland/crash.cpp

@@ -27,7 +27,7 @@
 
 #include <AK/Function.h>
 #include <AK/String.h>
-#include <Kernel/Syscall.h>
+#include <Kernel/API/Syscall.h>
 #include <Kernel/IO.h>
 #include <LibCore/ArgsParser.h>
 #include <stdio.h>

Userland/functrace.cpp

@@ -32,7 +32,7 @@
 #include <AK/NonnullOwnPtr.h>
 #include <AK/StringBuilder.h>
 #include <AK/kmalloc.h>
-#include <Kernel/Syscall.h>
+#include <Kernel/API/Syscall.h>
 #include <LibC/sys/arch/i386/regs.h>
 #include <LibCore/ArgsParser.h>
 #include <LibCore/File.h>

Userland/purge.cpp

@@ -24,7 +24,7 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <Kernel/Syscall.h>
+#include <Kernel/API/Syscall.h>
 #include <serenity.h>
 #include <stdio.h>
 #include <string.h>

Userland/strace.cpp

@@ -27,7 +27,7 @@
 #include <AK/Assertions.h>
 #include <AK/LogStream.h>
 #include <AK/Types.h>
-#include <Kernel/Syscall.h>
+#include <Kernel/API/Syscall.h>
 #include <LibC/sys/arch/i386/regs.h>
 #include <LibCore/ArgsParser.h>
 #include <signal.h>

Userland/syscall.cpp

@@ -24,7 +24,7 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <Kernel/Syscall.h>
+#include <Kernel/API/Syscall.h>
 #include <errno.h>
 #include <getopt.h>
 #include <stdint.h>