cyclic: Use schedule() instead of WATCHDOG_RESET()

Globally replace all occurances of WATCHDOG_RESET() with schedule(),
which handles the HW_WATCHDOG functionality and the cyclic
infrastructure.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Tom Rini <trini@konsulko.com> [am335x_evm, mx6cuboxi, rpi_3,dra7xx_evm, pine64_plus, am65x_evm, j721e_evm]
diff --git a/drivers/serial/serial_octeon_bootcmd.c b/drivers/serial/serial_octeon_bootcmd.c
index 4bcff77..eff5c43 100644
--- a/drivers/serial/serial_octeon_bootcmd.c
+++ b/drivers/serial/serial_octeon_bootcmd.c
@@ -98,7 +98,7 @@
 	}
 
 	while (!octeon_bootcmd_pending(dev, true)) {
-		WATCHDOG_RESET();
+		schedule();
 		/*
 		 * ToDo:
 		 * The original code calls octeon_board_poll() here. We may