utils.layer_utils: don't consume 'name' when loading
utils.layer_utils: don't consume 'name' when loading

When loading regularizers/constraints from config, and the object isn't
found, don't consume the 'name' key.

This enables expansions to keras to be saved/loaded with dictionaries as
some of their parameters.

Signed-off-by: Amit Beka <feb9f1199bc383ad0266545392aa23bd5a177c94@gmail.com>

nebw/keras,relh/keras,kuza55/keras,keras-team/keras,keras-team/keras,daviddiazvico/keras,kemaswill/keras,dolaameng/keras,DeepGnosis/keras