thermal: intel: Clean up zone_trips[] initialization in int340x_thermal_zone_add()

'zone_trips[]' has just been allocated with kzalloc(), so .flags is
known to be 0, so assign THERMAL_TRIP_FLAG_RW_TEMP directly to it.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://patch.msgid.link/cceb7f8864c43f046cf1c19c3bbcc38a7a57adc5.1740426540.git.christophe.jaillet@wanadoo.fr


[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>