Moving common fuzzing code to fuzz package

Test: make haiku and make haiku-rust
Change-Id: Ife80cc10672f51bd6afbae7061cc9373a2a15e7d
diff --git a/rust/rust.go b/rust/rust.go
index 80be496..e18f8cc 100644
--- a/rust/rust.go
+++ b/rust/rust.go
@@ -25,6 +25,7 @@
 	"android/soong/bloaty"
 	"android/soong/cc"
 	cc_config "android/soong/cc/config"
+	"android/soong/fuzz"
 	"android/soong/rust/config"
 )
 
@@ -123,7 +124,7 @@
 }
 
 type Module struct {
-	cc.FuzzModule
+	fuzz.FuzzModule
 
 	VendorProperties cc.VendorProperties