BUILD.gn: add missing dependency onto marl for SubzeroReactor
BUILD.gn: add missing dependency onto marl for SubzeroReactor

To fix broken Chromium build:
https://chromium-review.googlesource.com/c/chromium/src/+/2102747

Bug: fix Chromium build
Change-Id: I00e3bbe3087d6c885164d6b91e55ac50a89b5dad
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/42348
Reviewed-by: Nicolas Capens <51edc787c30f24c4904e8ffbb5523c3a9f7a451d@google.com>
Tested-by: Antonio Maiorano <86d87a6550afb6b07035c9743fa181900589f7e0@google.com>

google/swiftshader,bkaradzic/SwiftShader,bkaradzic/SwiftShader,bkaradzic/SwiftShader,bkaradzic/SwiftShader,google/swiftshader,google/swiftshader,bkaradzic/SwiftShader