rcar_gen3: drivers: Change to restore timer counter value at resume

Changed to save and restore cntpct_el0 using memory mapped
register for generic timer when System Suspend and Resume.

Reported by: Volodymyr Babchuk <volodymyr_babchuk@epam.com>
Signed-off-by: Toshiyuki Ogasahara <toshiyuki.ogasahara.bo@hitachi.com>
Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
Change-Id: I40fd9f5434c4d52b320cd1d20322b9b8e4e67155
diff --git a/drivers/renesas/rcar/console/rcar_printf.h b/drivers/renesas/rcar/console/rcar_printf.h
index bcb00c3..5da70e6 100644
--- a/drivers/renesas/rcar/console/rcar_printf.h
+++ b/drivers/renesas/rcar/console/rcar_printf.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015-2017, Renesas Electronics Corporation. All rights reserved.
+ * Copyright (c) 2015-2019, Renesas Electronics Corporation. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -12,8 +12,4 @@
 int32_t rcar_set_log_data(int32_t c);
 int32_t rcar_log_init(void);
 
-#if IMAGE_BL31
-extern uint64_t rcar_stack_generic_timer[5];
-#endif
-
 #endif /* RCAR_PRINTF_H */