Remove implementation details from wifi hidden api flags

Ran the following to compute the set of split_packages and
package_prefixes properties.
    m analyze_bcpf &&
    analyze_bcpf --bcpf com.android.os.wifi-bootclasspath-fragment --fix

Bug: 194063708
Test: m out/soong/hiddenapi/hiddenapi-flags.csv
Change-Id: Ie79bd04fb4a4b984a4e7dc3f195138c16c58b2fa
1 file changed