[ios-clr] Enable building CoreCLR runtime packs for Apple mobile

[kotlarmilos]

Description

This PR enables building runtime packs for Apple mobile platforms. It includes libcoreclr which already includes the clrinterpreter object files.

The following libraries are included:

libcoreclr (includes clrinterpreter)
libbrotli (compression libraries)
System.Security.Cryptography.Native.Apple
System.Net.Security.Native
System.IO.Compression.Native
System.Globalization.Native
System.Native

Contributes to #120050

[Copilot]

Pull Request Overview

This PR enables building CoreCLR runtime packs for Apple mobile platforms (iOS) by adding support for the TargetsAppleMobile condition. The change allows CoreCLR to be built and packaged for iOS devices, including essential native libraries like libcoreclr with clrinterpreter support.

Key Changes

• Enables CoreCLR support for Apple mobile platforms by adding the TargetsAppleMobile condition
• Allows building runtime packs that include core native libraries (libcoreclr, compression, cryptography, networking, and globalization libraries)

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