BB: ubox: kmodloader: support loading kmods from multiple directories
This is required during early boot in the extroot setup phase to support
loading kmods from the overlay that depend on kmods on the rom partition.
The subsequent mount_root updates will use the LD_LIBRARY_PATH env
variable to pass kmod directories to kmodloader.
Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>
Backport of r42813, r44533
git-svn-id: svn://svn.openwrt.org/openwrt/branches/barrier_breaker@44536
3c298f89-4303-0410-b956-
a3cf2f4a3e73