hypervisor: Move msr and msr_data macro to arch/x86

Currently these two macros(msr, msr_data) reside both on kvm and mshv
module. Definition is same for both module. Moving them to arch/x86
module eliminates redundancy and makes more sense.

Signed-off-by: Muminul Islam <muislam@microsoft.com>

hypervisor/src/lib.rs

@@ -28,6 +28,10 @@ extern crate serde_derive;
 extern crate serde_json;
 extern crate thiserror;
 
+/// Architecture specific definitions
+#[macro_use]
+pub mod arch;
+
 #[cfg(feature = "kvm")]
 /// KVM implementation module
 pub mod kvm;
@@ -42,9 +46,6 @@ pub mod hypervisor;
 /// Vm related module
 pub mod vm;
 
-/// Architecture specific definitions
-pub mod arch;
-
 /// CPU related module
 mod cpu;