qcacmn: Add data structures for SWLM

Add the necessary data structures for the
software latency manager.

Change-Id: Ibf55f0eef7ee6602b007de39a28f09c4622bd356
CRs-Fixed: 2769004

hal/wifi3.0/hal_internal.h

@@ -209,6 +209,7 @@ enum hal_srng_dir {
 #define hal_srng_lock_t qdf_spinlock_t
 #define SRNG_LOCK_INIT(_lock) qdf_spinlock_create(_lock)
 #define SRNG_LOCK(_lock) qdf_spin_lock_bh(_lock)
+#define SRNG_TRY_LOCK(_lock) qdf_spin_trylock_bh(_lock)
 #define SRNG_UNLOCK(_lock) qdf_spin_unlock_bh(_lock)
 #define SRNG_LOCK_DESTROY(_lock) qdf_spinlock_destroy(_lock)