samples/shell: don't run on QEMU, input not supported

This will be reverted once input is supported in QEMU.

Change-Id: I4bc946f1634bf9ebd17b697f0da7ce2f813e5725
Signed-off-by: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
2 files changed