mb/google/nissa/var/nivviks: Change ISH name to adl_ish_lite.bin

The ISH build target used for nissa is called adl_ish_lite: CL:3925007,
and by default the binary is installed as
/lib/firmware/intel/adl_ish_lite.bin

We could change the installed name, but it's nicer to keep it consistent
with the build target, so change the name in coreboot instead.

BUG=b:234776154
TEST=Build and boot nirwen, check firmware name is updated in SSDT

Change-Id: I983a38d08e758cf5a12a3f91a601c7e57d42c0cb
Signed-off-by: Reka Norman <rekanorman@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68466
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>

src/mainboard/google/brya/variants/nivviks/overridetree.cb

@@ -520,7 +520,7 @@ chip soc/intel/alderlake
 		end
 		device ref ish on
 			chip drivers/intel/ish
-				register "firmware_name" = ""adln_ish.bin""
+				register "firmware_name" = ""adl_ish_lite.bin""
 				device generic 0 on end
 			end
 			probe STORAGE STORAGE_UFS