[WATCHDOG] add watchdog driver IT8716 IT8726 IT8712J/K

Add it87xx watchdog driver
IT8716 IT8718 IT8726 IT8712-J IT8712-K

Signed-off-by: Oliver Schuster <olivers137@aol.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index e0ef123..e2e4bcf 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -71,6 +71,7 @@
 obj-$(CONFIG_ITCO_WDT) += iTCO_vendor_support.o
 endif
 obj-$(CONFIG_IT8712F_WDT) += it8712f_wdt.o
+obj-$(CONFIG_IT87_WDT) += it87_wdt.o
 obj-$(CONFIG_HP_WATCHDOG) += hpwdt.o
 obj-$(CONFIG_SC1200_WDT) += sc1200wdt.o
 obj-$(CONFIG_SCx200_WDT) += scx200_wdt.o