MAINTAINERS: Add drivers/firmware/google/ entry

These are mostly used for Chrome platforms, so group it in with the same
mailing list, repo, and (one) committer.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Acked-by: Julius Werner <jwerner@chromium.org>
Acked-By: Benson Leung <bleung@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Guenter Roeck <groeck@chromium.org>
Link: https://lore.kernel.org/r/20230724081247.678784-1-tzungbi@kernel.org
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>

MAINTAINERS

@@ -8758,6 +8758,15 @@ S:	Supported
 F:	Documentation/networking/device_drivers/ethernet/google/gve.rst
 F:	drivers/net/ethernet/google
 
+GOOGLE FIRMWARE DRIVERS
+M:	Tzung-Bi Shih <tzungbi@kernel.org>
+R:	Brian Norris <briannorris@chromium.org>
+R:	Julius Werner <jwerner@chromium.org>
+L:	chrome-platform@lists.linux.dev
+S:	Maintained
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux.git
+F:	drivers/firmware/google/
+
 GPD POCKET FAN DRIVER
 M:	Hans de Goede <hdegoede@redhat.com>
 L:	platform-driver-x86@vger.kernel.org