Fix pthread locking and remove defunctional support for static lock init.
* src/ath.c: Include assert.h. (ath_mutex_destroy, ath_mutex_lock, ath_mutex_unlock): Dereference LOCK. * src/g10lib.h (_gcry_secmem_module_init): New declaration. * src/global.c (global_init): Call _gcry_secmem_module_init. * src/secmem.c (_gcry_secmem_module_init): New function.