vmbase: Move hvc to aarch64

This commit move ARM hypercall interface to aarch64 directories.

Bug: 362733888
Test: m libvmbase

Change-Id: I17666437670feb9528c6871a36f9d6ecd3ea95d4
diff --git a/libs/libvmbase/src/arch/aarch64.rs b/libs/libvmbase/src/arch/aarch64.rs
index a3f1dd5..f888ccf 100644
--- a/libs/libvmbase/src/arch/aarch64.rs
+++ b/libs/libvmbase/src/arch/aarch64.rs
@@ -15,6 +15,7 @@
 //! Wrappers of assembly calls.
 
 pub mod dbm;
+pub mod hvc;
 pub mod layout;
 pub mod linker;
 pub mod page_table;