qcacld-3.0: Update sme_encrypt_decrypt_msg()

A new HDD Request Management framework is being deployed. One of the
requirements of that framework is that every request API must have a
provision for a caller-supplied context, and that caller-supplied
context must be returned to the caller when the callback function is
invoked.

Currently sme_encrypt_decrypt_msg() is not aligned with that
requirement. There is no provision for a caller-supplied context;
instead the HDD handle which is stored in the MAC context is always
returned.

In order to prepare sme_encrypt_decrypt_msg() for the HDD Request
Management framework update the curent implementation as follows:
1) Remove the separate registration and deregistration of the callback
   function pointer, and instead make the callback function and
   callback context parameters to sme_encrypt_decrypt_msg().
2) Pass the callback context when invoking the callback function.

Change-Id: I6e8c5405393f4cb732d9874ac07145caf5e95cac
CRs-Fixed: 2000026

core/wma/inc/wma.h

@@ -507,9 +507,6 @@ static const t_probeTime_dwellTime
 };
 
 typedef void (*txFailIndCallback)(uint8_t *peer_mac, uint8_t seqNo);
-typedef void (*encrypt_decrypt_cb)(struct sir_encrypt_decrypt_rsp_params
-		*encrypt_decrypt_rsp_params);
-
 
 typedef void (*tp_wma_packetdump_cb)(qdf_nbuf_t netbuf,
 			uint8_t status, uint8_t vdev_id, uint8_t type);