libsmack: refactoring of label dictionary code
libsmack: refactoring of label dictionary code

Commit cd2ce11 introduced label dictionary, with hash table of labels
hidden behind an abstraction layer. This patch drops this layer and merges
the hash table with smack_accesses.
It will enable better handling of data, like storing and accessing
per-label data outside of dict_* functions.

Signed-off-by: Rafal Krypa <875f2afab983118b44e45bad4cf04b04767e9f4a@samsung.com>

jobol/smack,smack-team/smack,smack-team/smack,jobol/smack