Move pvmfw to under guest

and run rustfmt as requested

Bug: 352458998
Test: pass TH
Change-Id: I5bf24f2e1e9d27428fda8e3e60172748cd3ad55f
diff --git a/TEST_MAPPING b/TEST_MAPPING
index 58aff90..80e085c 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -120,7 +120,7 @@
       "path": "packages/modules/Virtualization/guest/microdroid_manager"
     },
     {
-      "path": "packages/modules/Virtualization/pvmfw"
+      "path": "packages/modules/Virtualization/guest/pvmfw"
     },
     {
       "path": "packages/modules/Virtualization/rialto"