Fix xap cli bcd output

lib/python/xap_client/device.py

@@ -17,7 +17,12 @@ from .routes import XAPRoutes, XAPRouteError
 def _u32_to_bcd(val: bytes) -> str:  # noqa: N802
     """Create BCD string
     """
-    return f'{val>>24}.{val>>16 & 0xFF}.{val & 0xFFFF}'
+    tmp = "{:08x}".format(val)
+    major = int(tmp[0:2])
+    minor = int(tmp[2:4])
+    patch = int(tmp[4:8])
+
+    return f'{major}.{minor}.{patch}'
 
 
 def _gen_token() -> bytes: