Kernel: Make ioctl take unsigned long instead of int

this is what linux does :D

also fix one or two `return ioctl` instead of `return ioctl_impl`

userspace/libraries/LibC/include/sys/ioctl.h

@@ -82,7 +82,7 @@ struct fb_msync_region
 };
 #define FB_MSYNC_RECTANGLE 90 /* msync a rectangular area in mmap'd framebuffer device */
 
-int ioctl(int, int, ...);
+int ioctl(int, unsigned long, ...);
 
 __END_DECLS
 

userspace/libraries/LibC/sys/ioctl.cpp

@@ -3,7 +3,7 @@
 #include <sys/syscall.h>
 #include <unistd.h>
 
-int ioctl(int fildes, int request, ...)
+int ioctl(int fildes, unsigned long request, ...)
 {
 	va_list args;
 	va_start(args, request);