soc: fsl: guts: Revert commit 3c0d64e867ed

soc: fsl: guts: Revert commit 3c0d64e867ed

BugLink: https://bugs.launchpad.net/bugs/1964361
[ Upstream commit b113737cf12964a20cc3ba1ddabe6229099661c6 ]

This reverts commit 3c0d64e867ed
("soc: fsl: guts: reuse machine name from device tree").

A following patch will fix the missing memory allocation failure check
instead.

Suggested-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>