apps/coremark: Tickle watchdog in coremark shell command

This simply tickle watchdog before and after running
coremark to prevent accidental reboot during command
execution if watchdog was enabled.

Signed-off-by: Jerzy Kasenberg <jerzy@apache.org>

util/coremark/src/coremark_shell.c

@@ -20,8 +20,7 @@
 #include <os/mynewt.h>
 
 #include <shell/shell.h>
-#include <parse/parse.h>
-#include <stdio.h>
+#include <hal/hal_watchdog.h>
 #include <coremark/coremark_api.h>
 
 extern uint32_t SystemCoreClock;
@@ -32,7 +31,13 @@ coremark_shell_cmd(int argc, char **argv)
  printf("Coremark running on %s at %lu MHz\n\n",
  MYNEWT_VAL(BSP_NAME), SystemCoreClock / 1000000L);
 
+ if(MYNEWT_VAL(WATCHDOG_INTERVAL) > 0) {
+ hal_watchdog_tickle();
+ }
  coremark_run();
+ if(MYNEWT_VAL(WATCHDOG_INTERVAL) > 0) {
+ hal_watchdog_tickle();
+ }
 
  return 0;
 }