timer: Remove <common.h> and add needed includes

Remove <common.h> from this driver directory and when needed
add missing include files directly.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/timer/riscv_aclint_timer.c b/drivers/timer/riscv_aclint_timer.c
index 73fb879..35da1ea 100644
--- a/drivers/timer/riscv_aclint_timer.c
+++ b/drivers/timer/riscv_aclint_timer.c
@@ -4,7 +4,7 @@
  * Copyright (C) 2018, Bin Meng <bmeng.cn@gmail.com>
  */
 
-#include <common.h>
+#include <config.h>
 #include <clk.h>
 #include <div64.h>
 #include <dm.h>