Fix broken NVMEM ASCII patch for x86 target as it does currently fail
compilation when OF is not compiled.
Also mute a warning for integer from pointer without a cast.
Fixes: 73a6cb983c46 ("generic: add pending support for NVMEM ASCII ENV layout driver")
Link: https://github.com/openwrt/openwrt/pull/17845
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Add pending patch to support NVMEM ASCII ENV layout driver. This is a
generic driver to handle simple NVMEM partition that store environment
in a simple text format. This is the case for Linksys devinfo partition
that are litterally txt file with format "name=value\n"
Such driver works similar to u-boot,env with a similar format. While at
it also introduce a patch to generalize mac-base handling for also other
layout driver.
Link: https://github.com/openwrt/openwrt/pull/17839
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
