sysroot: Support FUZZER_SYSROOT artifact

BUG=b:245349240
TEST=run_tests

Change-Id: I1f30db908c1fb03db3d1413bec0625baaf72596d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/3971942
Reviewed-by: George Engelbrecht <engeg@google.com>
Commit-Queue: Jack Neus <jackneus@google.com>
Reviewed-by: Madeleine Hardt <hardtmad@google.com>
Reviewed-by: Alex Klein <saklein@chromium.org>
Tested-by: Jack Neus <jackneus@google.com>
diff --git a/api/controller/sysroot.py b/api/controller/sysroot.py
index 0d0ede3..7235b19 100644
--- a/api/controller/sysroot.py
+++ b/api/controller/sysroot.py
@@ -119,6 +119,7 @@
         in_proto.ArtifactType.CHROME_EBUILD_ENV: sysroot.CreateChromeEbuildEnv,
         in_proto.ArtifactType.BREAKPAD_DEBUG_SYMBOLS: sysroot.BundleBreakpadSymbols,
         in_proto.ArtifactType.DEBUG_SYMBOLS: sysroot.BundleDebugSymbols,
+        in_proto.ArtifactType.FUZZER_SYSROOT: sysroot.CreateFuzzerSysroot,
     }
 
     for output_artifact in in_proto.output_artifacts: