add system time, clean up pci into pci.sys, clean up syscall names, fix USERAPC1 typo

code/user/tests/async_cancel/async_cancel.c

@@ -46,7 +46,7 @@ int main(void) {
         SysExitProcess(1);
     }
 
-    s = SysEventCreate(EVENT_AUTO_RESET, 0, &event);
+    s = SysCreateEvent(EVENT_AUTO_RESET, 0, &event);
     if (s != SYS_STATUS_SUCCESS) {
         print("async_cancel: event create failed status="); print_u64(s); print("\n");
         SysExitProcess(1);
@@ -84,7 +84,7 @@ int main(void) {
     print("async_cancel: cancel returned "); print_u64(cs); print("\n");
 
     while (iosb.Status == SYS_STATUS_PENDING) {
-        s = SysEventWait(event, 1);
+        s = SysWaitEvent(event, 1);
         print("async_cancel: wait returned "); print_u64(s); print("\n");
         if (s != SYS_STATUS_SUCCESS && s != SYS_STATUS_KERNEL_APC && s != SYS_STATUS_USER_APC && s != SYS_STATUS_ALERTED)
             break;