Add global timer

src/arch/8051/include/arch/time.h

@@ -0,0 +1,7 @@
+#ifndef _ARCH_TIME_H
+#define _ARCH_TIME_H
+
+void time_init(void);
+uint32_t time_get(void);
+
+#endif // _ARCH_TIME_H

src/arch/8051/include/arch/timer.h

@@ -1,8 +0,0 @@
-#ifndef _ARCH_TIMER_H
-#define _ARCH_TIMER_H
-
-void timer_mode_1(int value);
-void timer_wait(void);
-void timer_stop(void);
-
-#endif // _ARCH_TIMER_H