lua: add lua 5.2 recipe

Add lua 5.2.2 recipe.

Update:
  * remove bitwise_operators.patch that lua uses bit32 library to
    support for bitwise operations.
  * update uclibc-pthread.patch

Signed-off-by: Kai Kang <kai.kang@windriver.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>