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]

common/usb_kbd.c

@@ -446,7 +446,7 @@ static int usb_kbd_getc(struct stdio_dev *sdev)
 	data = usb_kbd_dev->privptr;
 
 	while (data->usb_in_pointer == data->usb_out_pointer) {
-		WATCHDOG_RESET();
+		schedule();
 		usb_kbd_poll_for_event(usb_kbd_dev);
 	}