watchdog: imgpdc: Fix default heartbeat
watchdog: imgpdc: Fix default heartbeat

The IMG PDC watchdog driver heartbeat module parameter has no default so
it is initialised to zero. This results in the following warning during
probe:

imgpdc-wdt 2006000.wdt: Initial timeout out of range! setting max timeout

The module parameter description implies that the default value should
be PDC_WDT_DEF_TIMEOUT, which isn't yet used, so initialise it to that.

Also tweak the heartbeat module parameter description for consistency.

Fixes: 93937669e9b5 ("watchdog: ImgTec PDC Watchdog Timer Driver")
Signed-off-by: James Hogan <547fa85bb3888a0222eed8ec39e36708605c6d53@imgtec.com>
Cc: Ezequiel Garcia <7248f52d8926fd82a5eb079a13afe9dd79e34c7a@imgtec.com>
Cc: Naidu Tellapati <75dccddd58cb17b6a27312ab88c671d81ad4d97f@imgtec.com>
Cc: Jude Abraham <de40fa53201adc6405b0e9fe404dded79606c84c@imgtec.com>
Cc: ee6bd6521c0edd0140322317c8db66d3b09bded1@vger.kernel.org
Reviewed-by: Guenter Roeck <ba324ca7b1c77fc20bb970d5aff6eea9377918a5@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <5f65f6985de1ebf15dde04e0dc4668211868bafa@iguana.be>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs