Make stripping ELF optional for QEMU direct boot

osdk/src/cli.rs

@@ -264,6 +264,12 @@ pub struct CommonArgs {
         global = true
     )]
     pub linux_x86_legacy_boot: bool,
+    #[arg(
+        long = "strip-elf",
+        help = "Strip the built kernel ELF file for a smaller size",
+        global = true
+    )]
+    pub strip_elf: bool,
     #[arg(
         long = "target-arch",
         value_name = "ARCH",