Merge "Add new KeyMint curve enum" am: f4a119d3e7

Original change: https://android-review.googlesource.com/c/platform/hardware/libhardware/+/1907872

Change-Id: Ic8b388da14909629abc03539a18242c2656295e0
diff --git a/include/hardware/keymaster_defs.h b/include/hardware/keymaster_defs.h
index c0b3800..930aceb 100644
--- a/include/hardware/keymaster_defs.h
+++ b/include/hardware/keymaster_defs.h
@@ -304,6 +304,7 @@
     KM_EC_CURVE_P_256 = 1,
     KM_EC_CURVE_P_384 = 2,
     KM_EC_CURVE_P_521 = 3,
+    KM_EC_CURVE_CURVE_25519 = 4,
 } keymaster_ec_curve_t;
 
 /**