When initializing crypto devices within the app,
the provided key sizes are checked against the supported
sizes from the crypto device capabilities.
When the supported sizes are not a range, but a single value,
the check may become an infinite loop (when size is not supported).
Fixes: a061e50a0d97 ("examples/l2fwd-crypto: fix ambiguous input key size")
Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Tested-by: Min Cao <min.cao@intel.com>