Now all platforms support setting the GPIO name instead of an index
as the configuration for the GPIO-enabled secure console.
Repurpose the TRUSTFENCE_GPIO_ENABLE macro to directly set the GPIO
name.
Also take the opportunity to remove TRUSTFENCE_GPIO_ENABLE and
TRUSTFENCE_CONSOLE_PASSPHRASE_ENABLE commented definitions from bbclass
and conf files, and remove a duplicated TRUSTFENCE_CONSOLE_DISABLE
definition from ccmp1.inc.
Signed-off-by: Gonzalo Ruiz <Gonzalo.Ruiz@digi.com>