u-boot-update: use /etc/kernel/cmdline instead of /etc/default/u-boot
With the previous implementation, we used both the contents of
/etc/kernel/cmdline
and of /etc/default/u-boot
, which could cause
some command-line parameters to appear twice on the final command-line.
As the preferred method is to use /etc/kernel/cmdline
, this commit
improves on the previous one by using only the contents of this file,
and revert to using the variables in /etc/default/u-boot
in case
cmdline
is missing or empty.
Signed-off-by: Arnaud Ferraris arnaud.ferraris@collabora.com