tests: skip the test interfaces-many-snap-provided in trusty
* skip the test interfaces-many-snap-provided in trusty
We skip the test in trusty butcause it fails with the following error since was added private /dev/shm support to shared-memory interface shared-memory plug with "private: true" cannot be connected if "/dev/shm" is a symlink)
* Remove shared-memory plug and interface from the snap.yaml on trusty
* updated also interfaces-many-core-provided-on-trusty
i/b/kernel_module_load: expand $SNAP_COMMON in module options
* i/b/kernel_module_load: expand $SNAP_COMMON in module options
A kernel module might need to load a file from the filesystem, and we might have cases where this file is shipped with the snap itself; therefore, support using $SNAP_COMMON in the kernel module options.