efi: rtc-efi: Export platform:rtc-efi as module alias
efi: rtc-efi: Export platform:rtc-efi as module alias

When the rtc-efi driver is built as a module, we already register the
EFI rtc as a platform device if UEFI Runtime Services are enabled.
To wire it up to udev, and let the module be loaded automatically, we
need to export the 'platform:rtc-efi' alias from the module.

Signed-off-by: Ard Biesheuvel <66d3c5fdaeea7ff1f996ad04f2c45e08ab38e2f5@linaro.org>
Cc: Alessandro Zummo <f0b9bd96bf07bfecc189c62159960134588fafe5@towertech.it>
Cc: Mark Salter <3186038803479a476d7152f26680d7b1b21c12c4@redhat.com>
Cc: Dave Young <5716cc40769303914dac486db0fc6ac4cba9419e@redhat.com>
Signed-off-by: Matt Fleming <b02f0790d66a0f0a6b369873bf6df37420fbe5dd@intel.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs