Fix "SYS_KEYS has no physical keys but with factor 2.0%" on adbe start

This fixes following error on devices without physical keys:

	args: [-p, com.android.settings, -c, android.intent.category.LAUNCHER, 1]
	 arg: "-p"
	 arg: "com.android.settings"
	 arg: "-c"
	 arg: "android.intent.category.LAUNCHER"
	 arg: "1"
	data="com.android.settings"
	data="android.intent.category.LAUNCHER"
	** SYS_KEYS has no physical keys but with factor 2.0%.

For details see appium/appium-android-driver#729
and https://stackoverflow.com/questions/44860475/how-to-use-the-monkey-command-with-an-android-system-that-doesnt-have-physical
and ARM-software/lisa#408

Author: im-0

adbe/adb_enhanced.py

@@ -1426,7 +1426,9 @@ def cat_file(file_path: str) -> None:
 # Source: https://stackoverflow.com/a/25398877
 @ensure_package_exists
 def launch_app(app_name: str) -> None:
-    adb_shell_cmd = f"monkey -p {app_name} -c android.intent.category.LAUNCHER 1"
+    # `--pct-syskeys 0` is needed on devices without physical keys.
+    # See https://github.com/ARM-software/lisa/pull/408 for details.
+    adb_shell_cmd = f"monkey --pct-syskeys 0 -p {app_name} -c android.intent.category.LAUNCHER 1"
     execute_adb_shell_command3(adb_shell_cmd)