thermal: debugfs: Use seq_puts() for constant string output

thermal: debugfs: Use seq_puts() for constant string output

Replace seq_printf() with seq_puts() when outputting a constant string
without format specifiers in the thermal mitigation debugfs interface.

seq_puts() is more appropriate and efficient as it avoids unnecessary
format string parsing overhead.

No functional change.

Signed-off-by: Sumeet Pawnikar <sumeet4linux@gmail.com>
Link: https://patch.msgid.link/20260110183912.372215-1-sumeet4linux@gmail.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>