MAINTAINERS: adjust entry in THERMAL/POWER_ALLOCATOR after header movement

Commit 32a7a021 ("thermal/core: Relocate the traces definition in
thermal directory") moves include/trace/events/thermal_power_allocator.h to
drivers/thermal/thermal_trace_ipa.h, but misses to adjust the file
entry for the THERMAL/POWER_ALLOCATOR section.

Hence, ./scripts/get_maintainer.pl --self-test=patterns complains about a
broken reference.

Adjust this file entry in THERMAL/POWER_ALLOCATOR.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20230328091737.6785-1-lukas.bulwahn@gmail.com

MAINTAINERS

@@ -20775,7 +20775,7 @@ L:	linux-pm@vger.kernel.org
 S:	Maintained
 F:	Documentation/driver-api/thermal/power_allocator.rst
 F:	drivers/thermal/gov_power_allocator.c
-F:	include/trace/events/thermal_power_allocator.h
+F:	drivers/thermal/thermal_trace_ipa.h
 
 THINKPAD ACPI EXTRAS DRIVER
 M:	Henrique de Moraes Holschuh <hmh@hmh.eng.br>