Reapply "Add os parameter to composd_cmd"

This reverts commit 17e555be3285bc9dedccb0876dfd892a4dfe0ea5.

Reason for revert: fixed composd by adding os correctly

Bug: 302465542
Test: atest odsign_e2e_tests
Change-Id: I31bcd068594890e532429bf41828de850a0f2a0a
diff --git a/android/compos_verify/verify.rs b/android/compos_verify/verify.rs
index a3f18d5..b94ebbc 100644
--- a/android/compos_verify/verify.rs
+++ b/android/compos_verify/verify.rs
@@ -124,6 +124,7 @@
         &idsig_manifest_ext_apk,
         &VmParameters {
             name: String::from("ComposVerify"),
+            os: String::from("microdroid"),
             cpu_topology: VmCpuTopology::OneCpu, // This VM runs very little work at boot
             debug_mode: args.debug,
             ..Default::default()