chore: Prepare 0.12.0 release

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

Author: russell-islam

CHANGELOG.md

@@ -1,7 +1,10 @@
 # Upcoming Release
 
-## Changed
+# [v0.12.0]
 
+## Changed
+- [[#187](https://github.com/rust-vmm/linux-loader/pull/187)] Updated vm-memory to 0.15.0.
+- [[#179](https://github.com/rust-vmm/linux-loader/pull/179)] Load hvm_modlist_entry into guest memory when requested.
 - [[#177](https://github.com/rust-vmm/linux-loader/pull/176)] Added loading
   of PVH module blobs into guest memory. This enables booting with `initrd`
   via PVH boot.

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "linux-loader"
-version = "0.11.0"
+version = "0.12.0"
 authors = [
     "The rust-vmm maintainers",
     "rust-vmm AWS maintainers <rust-vmm-maintainers@amazon.com>",