I made an oversight in pmaports!5295 which caused the post-install
script to try enabling the sd8x-wlan service even if the downstream
subpackage isn't installed. This causes errors when creating a new
mainline rootfs, so fix it by moving the install variable declaration to
the subpackage function.
Resolves this harmless, but annoying error on mainline:
* Enabling wlan driver ...
/lib/rc/sh/openrc-run.sh: line 14: can't create /sys/devices/platform/sd8x-rfkill/pwr_ctrl: nonexistent directory
* ERROR: sd8x-wlan failed to start
[ci:skip-build]: already built successfully in CI
This is to emphasize the fact that this firmware package will work essentially
unmodified on the samsung-coreprimevelte and other Samsung PXA1908 phones as
well.
