Missing xtask config

Author: huntc

xtask/src/lib.rs

@@ -27,6 +27,7 @@ pub static EXAMPLES: &[(&str, &[&str])] = &[
         "ppi-demo",
         &["51", "52810", "52811", "52832", "52833", "52840"],
     ),
+    ("nvmc-demo", &["52840"]),
     ("pwm-blinky-demo", &["52840"]),
     ("pwm-demo", &["52840"]),
     ("qdec-demo", &[]),