CVE-2022-49387 watchdog: rzg2l_wdt: Fix 32bit overflow issue

In the Linux kernel, the following vulnerability has been resolved: watchdog: rzg2lwdt: Fix 32bit overflow issue The value of timercycleus can be 0 due to 32bit overflow. For eg:- If we assign the counter value "0xfff" for computing maxval. This patch fixes this issue by appending ULL to 1024, so...