MLK-21455-1 nvmem: allow to select i.MX nvmem driver for i.MX 7D

MLK-21455-1 nvmem: allow to select i.MX nvmem driver for i.MX 7D

The imx-ocotp nvmem driver supports the i.MX 7D SoC too. Allow to select
the imx-ocotp driver even if only the i.MX 7D SoC has been selected.

Fixes: 711d45477931 ("nvmem: octop: Add i.MX7D support")
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 9f23379c67fa20b367ea53cfd989da5212316e6f)