can: etas_es58x: replace ES58X_MODULE_NAME with KBUILD_MODNAME

ES58X_MODULE_NAME is set to "etas_es58x". KBUILD_MODNAME also
evaluates to "etas_es58x". Get rid of ES58X_MODULE_NAME and rely on
KBUILD_MODNAME instead.

Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20220726082707.58758-10-mailhol.vincent@wanadoo.fr


Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>