MAINTAINERS: adjust file entry in INTEL STRATIX10 FIRMWARE DRIVERS

Commit fbfb649 ("dt-bindings: firmware: stratix10: Convert to
json-schema") renames intel,stratix10-svc.txt to intel,stratix10-svc.yaml
in Documentation/devicetree/bindings/firmware/ as part of this dt-binding
conversion, but misses to adjust the file entry in INTEL STRATIX10 FIRMWARE
DRIVERS.

Adjust the file entry after the conversion.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@redhat.com>
Acked-by: Dinh Nguyen <dinguyen@kernel.org>
Link: https://lore.kernel.org/r/20250512134332.36366-1-lukas.bulwahn@redhat.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

Author: bulwahn

MAINTAINERS

@@ -12463,7 +12463,7 @@ L:	linux-kernel@vger.kernel.org
 S:	Maintained
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux.git
 F:	Documentation/ABI/testing/sysfs-devices-platform-stratix10-rsu
-F:	Documentation/devicetree/bindings/firmware/intel,stratix10-svc.txt
+F:	Documentation/devicetree/bindings/firmware/intel,stratix10-svc.yaml
 F:	drivers/firmware/stratix10-rsu.c
 F:	drivers/firmware/stratix10-svc.c
 F:	include/linux/firmware/intel/stratix10-smc.h