rename all waitvblank() to waitvsync()

testcode/lib/conio.c

@@ -117,8 +117,8 @@ void main(void)
                 gotoxy(7 + inpos,1);
 
 #if defined(__NES__) || defined(__PCE__) || defined(__GAMATE__)
-                /* not all targets have waitvblank */
-                waitvblank();
+                /* not all targets have waitvsync */
+                waitvsync();
                 /* for targets that do not have a keyboard, read the first
                    joystick */
                 joy = joy_read(JOY_1);

testcode/lib/gamate/ctest.c

@@ -41,7 +41,7 @@ int main(int argc, char *argv[])
                 break;
         }
 
-        waitvblank();
+        waitvsync();
 
         (*((unsigned char*)LCD_XPOS)) = x;
         (*((unsigned char*)LCD_YPOS)) = y;

testcode/lib/pce/conio.c

@@ -123,7 +123,7 @@ void main(void)
                                 p[8],p[9],p[10],p[11],p[12],p[13],p[14],p[15]);
                 }
 
-                waitvblank();
+                waitvsync();
                 ++n;
         }
 }