sdk: Install nativesdk locales for all TCLIBC variants
install_locales() here is actually operating on nativesdk and only glibc
is the default library for nativesdk, since thats what most of
desktop/server distros use, therefore bailing out based on TCLIBC is not
needed here, since nativesdk-glibc would be required for all non-glibc
targetting SDKs as well.
Fixes SDK install time error
ERROR: OE-core's config sanity checker detected a potential misconfiguration.
Either fix the cause of this error or at your own risk disable the checker (see sanity.conf).
Following is the list of potential problems / advisories:
Your system needs to support the en_US.UTF-8 locale.
ERROR: SDK preparation failed
