android: Import IKE/ESP proposals

We currently don't validate them here, only when used later will they
get parsed (which includes some checks).

src/frontends/android/app/src/main/java/org/strongswan/android/ui/VpnProfileImportActivity.java

@@ -497,6 +497,8 @@ public class VpnProfileImportActivity extends AppCompatActivity
 			}
 		}
 
+		profile.setIkeProposal(obj.optString("ike-proposal", null));
+		profile.setEspProposal(obj.optString("esp-proposal", null));
 		profile.setMTU(getInteger(obj, "mtu", Constants.MTU_MIN, Constants.MTU_MAX));
 		profile.setNATKeepAlive(getInteger(obj, "nat-keepalive", Constants.NAT_KEEPALIVE_MIN, Constants.NAT_KEEPALIVE_MAX));
 		JSONObject split = obj.optJSONObject("split-tunneling");