arm: multi_v7_defconfig: Enable TPS65219 regulator

Enable the TPS65219 regulator in the defconfig, as the TPS65214
variant is used by the newly introduced BeagleBoard Green Eco board.

Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Reviewed-by: Andreas Kemnade <andreas@kemnade.info>
Tested-by: Judith Mendez <jm@ti.com>
Link: https://lore.kernel.org/r/20250620-bbg-v5-5-84f9b9a2e3a8@bootlin.com


Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>