Console log doesn't work with --target option on iOS

**Description:**
This one works : ionic cordova emulate ios -c

All three below doesn't work :

ionic cordova emulate ios --target="iPhone-6" -c
ionic cordova emulate ios -c --target="iPhone-6"
ionic cordova emulate -c ios --target="iPhone-6"

**Steps to Reproduce:**
ionic cordova emulate ios --target="iPhone-6" -c
ionic cordova emulate ios -c --target="iPhone-6"
ionic cordova emulate -c ios --target="iPhone-6"

**My `ionic info`:**
cli packages:

@ionic/cli-utils : 1.13.0
ionic (Ionic CLI) : 3.13.0

global packages:

cordova (Cordova CLI) : 7.0.1

local packages:

@ionic/app-scripts : 3.0.0
Cordova Platforms : android 6.3.0 ios 4.5.1
Ionic Framework : ionic-angular 3.7.1

System:

ios-deploy : 1.9.2
ios-sim : 6.0.0
Node : v8.6.0
npm : 5.3.0
OS : macOS High Sierra
Xcode : Xcode 9.0 Build version 9A235

Misc:

backend : legacy

No source files or tests are identified in the report. Start by reproducing the issue with the listed `ionic cordova emulate ios` commands and the `--target="iPhone-6"` option, then trace the CLI's iOS emulate and console-log handling. Done means console logging works with the target option in each listed argument order.

由索引模型根据 Issue 内容生成。