[infra] Update manifest repo location

manifest/fuchsia -> fuchsia/manifest
alongside the other fuchsia repos.

Change-Id: I9d9785b2de46fa3e3c841a769fb434aa0085d7ac
diff --git a/infra b/infra
index 60480dc..21ea70f 100644
--- a/infra
+++ b/infra
@@ -5,11 +5,11 @@
     <!-- Not importing the minimal one so that we can put this in a
          sub-dir so that this can be imported into other manifests that
          pull in manifest repos from multiple gerrit hosts. -->
-    <project name="manifest/fuchsia"
+    <project name="fuchsia/manifest"
              remote="https://fuchsia.googlesource.com/manifest"
              gerrithost="https://fuchsia-review.googlesource.com"
              githooks="manifest/fuchsia/git-hooks"
-             path="manifest/fuchsia"/>
+             path="fuchsia/manifest"/>
     <!-- Name things <gerrit-host-prefix> so that this can be imported
          into other manifests that pull in infra repos from multiple hosts. -->
     <project name="fuchsia/infra"