Fix APIv3 profile.getfields to return correctly keyed phone field

[colemanw]

Overview

This fixes the phone profile field to have the correct field key to match profile forms.
Fixes civicrm/org.civicrm.contactlayout#91

Before

Key returned by api does not match form key for the phone field.

After

Matches and ContactLayout is able to function correctly.

Technical Details

The field key is supposed to be phone-[location_type_id|'Primary']-[phone_type_id].

[civibot]

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[seamuslee001]

@colemanw test fails look related

[eileenmcnaughton]

api_v3_ProfileTest::testGetFields
Failure in api call for profile getfields: Undefined index: email
#0 /home/jenkins/bknix-dfl/build/core-19321-4qeeq/web/sites/all/modules/civicrm/api/v3/Profile.php(577): PHPUnit\Util\ErrorHandler::handleError(8, 'Undefined index...', '/home/jenkins/b...', 577, Array)
#1 /home/jenkins/bknix-dfl/build/core-19321-4qeeq/web/sites/all/modules/civicrm/api/v3/Profile.php(301): _civicrm_api3_buildprofile_submitfields(23, false, NULL)

[eileenmcnaughton]

Tests are passing. I'm kind of taking your word + tests word on this since it's an obscure code area & you have one of the few interactions under your care