Use ios-sim, not ios-simulator

Author: jurvis

xcode/LDK/build-libldk.sh

@@ -29,7 +29,7 @@ if [[ ${ACTION:-build} = "build" || $ACTION = "install" ]]; then
     if [[ $PLATFORM_NAME = "macosx" ]]; then
         RUST_TARGET_OS="darwin"
     elif [[ $PLATFORM_NAME = "iphonesimulator" ]]; then
-        RUST_TARGET_OS="ios-simulator"
+        RUST_TARGET_OS="ios-sim"
     else
         RUST_TARGET_OS="ios"
     fi