Break devctl() up into smaller syscalls

share/sysdefs/syscall.h

@@ -6,7 +6,6 @@
 #define SYS_MMAN_MAP   5
 #define SYS_MMAN_UNMAP 6
 #define SYS_SCHEDRELEASE 7
-#define SYS_DEVCTL     8
 #define SYS_RAND       9
 #define SYS_VFSMOUNT   10
 #define SYS_VFSUNMOUNT 11
@@ -31,6 +30,10 @@
 #define SYS_FS_WRITE    30
 #define SYS_FS_FETCHDIRENT 31
 #define SYS_FS_MKDIR    32
+#define SYS_DEV_GETHANDLE   33
+#define SYS_DEV_LISTSIZE    34
+#define SYS_DEV_STAT        35
+#define SYS_DEV_CMD         36
 
 
 #endif // SHARE_HDRS_SYSCALL_H_