Speed up QEMU using tcg accelleration, which should be available for all platforms

Author: jasoncouture

tests/runner/src/lib.rs

@@ -8,6 +8,8 @@ const QEMU_ARGS: &[&str] = &[
     "-display",
     "none",
     "--no-reboot",
+    "-accel",
+    "tcg",
 ];
 
 pub fn run_test_kernel(kernel_binary_path: &str) {