It can be done as stated in the apple document link
In iOS 3.2 and later, apps can designate keys in the Info.plist file as being applicable only to specific types of devices. To create a device-specific key, you combine the key name with some special qualifiers using the following pattern:
key_root-platform~device
In this pattern, the key_root portion represents the original name of the key. The and portions are both optional endings that you can use to apply keys to specific platforms or devices. For the platform key, you can specify a value of iphoneos or macos depending on the platform you are targeting.
I think what you have done is right. Just try to delete the app from the device and build and run again.