Implement an ATA driver, Add vfsmount/vfsunmount syscalls

kernel/syscall/syscall.c

@@ -10,6 +10,7 @@
 #include "sched.h"
 #include "devctl.h"
 #include "randcrypto.h"
+#include "vfs.h"
 
 int32_t SYSCALL1(sys_debugprint, string) {
   char *p = (char *)string;
@@ -27,4 +28,6 @@ SyscallFn SYSCALL_TABLE[SYSCALLS_MAX] = {
   [SYS_SCHEDRELEASE] = &sys_schedrelease,
   [SYS_DEVCTL]     = &sys_devctl,
   [SYS_RAND]       = &sys_rand,
+  [SYS_VFSMOUNT]   = &sys_vfsmount,
+  [SYS_VFSUNMOUNT] = &sys_vfsunmount,
 };