It appears that property.h has been included in some configurations implicitly,
but in some it's not and hence build may fail. Add missed property.h explicitly.

Fixes: e2e8e4e8 ("leds: lm36274: Correct headers (of*.h -> mod_devicetable.h)")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>