MAINTAINERS: rectify entry for SYNOPSYS AXS10x RESET CONTROLLER DRIVER

Commit 820f722c05dd ("dt-bindings: reset: snps,axs10x-reset: Convert to
yaml") converts snps,axs10x-reset.txt to yaml, but misses to adjust its
reference in MAINTAINERS.

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

Repair this file reference in SYNOPSYS AXS10x RESET CONTROLLER DRIVER.

Signed-off-by: Lukas Bulwahn <[e-mail]>
Signed-off-by: Philipp Zabel <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

MAINTAINERS

···
 SYNOPSYS AXS10x RESET CONTROLLER DRIVER
 M:	Eugeniy Paltsev <[e-mail]>
 S:	Supported
-F:	Documentation/devicetree/bindings/reset/snps,axs10x-reset.txt
+F:	Documentation/devicetree/bindings/reset/snps,axs10x-reset.yaml
 F:	drivers/reset/reset-axs10x.c
 
 SYNOPSYS CREG GPIO DRIVER