qcacmn: Fix regression from DP init-deinit path changes

MCL DP initialization path is running into issues due to change
I5732453f617bdc16995fda916b645c41845c3ecb. Fix the same.

Move flow control lock variables to re-use region. This is needed since
flow control deinit happens in dp_soc_detach, while in dp_soc_deinit, the
soc memory is being partially reset.

De-init HTT memory in dp_soc_deinit and free HTT handle
in dp_soc_detach. The existing code was not freeing HTT
packets for MCL case and freeing the HTT handle twice.

CRs-Fixed: 2359409
Change-Id: I52dcccc0444d4ce139a29ffcb884598bbacda88f

dp/wifi3.0/dp_htt.h

@@ -151,6 +151,14 @@ void *
 htt_soc_initialize(void *htt_soc, void *ctrl_psoc, HTC_HANDLE htc_soc,
 		   void *hal_soc, qdf_device_t osdev);
 
+/*
+ * htt_soc_htc_dealloc() - HTC memory de-alloc
+ * @htt_soc: SOC level HTT handle
+ *
+ * Return: None
+ */
+void htt_soc_htc_dealloc(struct htt_soc *htt_handle);
+
 /*
  * htt_soc_htc_prealloc() - HTC memory prealloc
  * @htt_soc: SOC level HTT handle
@@ -158,8 +166,7 @@ htt_soc_initialize(void *htt_soc, void *ctrl_psoc, HTC_HANDLE htc_soc,
  * Return: QDF_STATUS_SUCCESS on success or
  * QDF_STATUS_E_NO_MEM on allocation failure
  */
-QDF_STATUS
-htt_soc_htc_prealloc(struct htt_soc *htt_soc);
+QDF_STATUS htt_soc_htc_prealloc(struct htt_soc *htt_soc);
 
 void htt_soc_detach(void *soc);