watchdog: Fix OMAP watchdog early handling

TI's implementation does not service the watchdog even if the kernel
command line parameter omap_wdt.early_enable is set to 1. This patch
fixes the issue.

Signed-off-by: Walter Stoll <walter.stoll@duagon.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/88a8fe5229cd68fa0f1fd22f5d66666c1b7057a0.camel@duagon.com


Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>