refactor: migrate server-framework to depend on libkos

crates/server-framework/src/async_syscall/mod.rs

@@ -1,15 +1,15 @@
 use types::bounded::CapSlot;
 
 pub async fn send(endpoint: CapSlot, w0: usize, w1: usize, w2: usize, w3: usize) -> usize {
-    userspace::syscall::send(endpoint, w0, w1, w2, w3)
+    libkos::syscall::send(endpoint, w0, w1, w2, w3)
 }
 
 pub async fn receive(endpoint: CapSlot) -> (usize, usize, usize, usize) {
-    userspace::syscall::receive(endpoint)
+    libkos::syscall::receive(endpoint)
 }
 
 pub async fn wait_for_interrupt(_irq: CapSlot) {
-    userspace::syscall::yield_now();
+    libkos::syscall::yield_now();
 }
 
 pub async fn acknowledge_interrupt(_irq: CapSlot) {