Fix HALs to not have transitive depends.

Bug in hidl-gen allowed this to work.

Test: -Lcheck
Bug: 65055216
Change-Id: Ia0cbaac4c8bfd93be169f4fab5c9ce016ee6c473
diff --git a/cas/native/1.0/IDescrambler.hal b/cas/native/1.0/IDescrambler.hal
index 459e5e3..4822111 100644
--- a/cas/native/1.0/IDescrambler.hal
+++ b/cas/native/1.0/IDescrambler.hal
@@ -16,6 +16,7 @@
 package android.hardware.cas.native@1.0;
 
 import android.hardware.cas@1.0::IDescramblerBase;
+import android.hardware.cas@1.0::Status;
 
 /**
  * IDescrambler is the native plugin API for descrambling operations.