package/freescale-imx/firmware-imx: fix the VPU firmware location

The mainline kernel searches the coda VPU firmware inside the following
locations [1]:

/lib/firmware/
/lib/firmware/vpu/

Currently Buildroot installs the coda firmware into /lib/firmware/imx/vpu,
which is not a valid location.

Fix it by installing the coda firmwares into /lib/firmware/vpu/ which
is a valid path for both mainline and NXP vendor kernels. Also create a
symlink to /lib/firmware/ so that mainline kernels do not need to wait
more than 60 seconds to search again inside /lib/firmware/vpu/.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=8af7779f3cbc1f6720d15f00abc797493710d1ab

Reported-by: Romain Naour <romain.naour@gmail.com>
Suggested-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
1 file changed