test: check pkparse with compressed ec

Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
diff --git a/tests/data_files/ec_prv.sec1.comp.pem b/tests/data_files/ec_prv.sec1.comp.pem
new file mode 100644
index 0000000..ada14c2
--- /dev/null
+++ b/tests/data_files/ec_prv.sec1.comp.pem
@@ -0,0 +1,4 @@
+-----BEGIN EC PRIVATE KEY-----
+MEcCAQEEGDOOhqiB4jj1Sb1vBVNJS3Pj1hEw/cbJbaAKBggqhkjOPQMBAaEcAxoA
+A1F1vN8wo3DznVOT5hJyiNgBZ7X0tLd2xg==
+-----END EC PRIVATE KEY-----