qcacmn: Reduce size of T2H HTT CE pipe for WCN6750

Currently, the size of target to host CE pipe for HTT RX communication
for WCN6750 is 512. The data that we receive on this pipe is not very
frequent and hence 512 entries are not needed.

Reduce the size of the HTT RX ring for WCN6750. This will also bring
down the memory requirement for this ring considerably.

Change-Id: I690fa34c76b1b683a1518964088bc7540ca751a4
CRs-Fixed: 3554428

hif/src/ce/ce_assignment.h

@@ -1591,7 +1591,7 @@ static struct CE_attr host_ce_config_wlan_qca6750[] = {
 	/* host->target HTC control and raw streams */
 	{ /* CE0 */ CE_ATTR_FLAGS, 0, 16, 2048, 0, NULL,},
 	/* target->host HTT + HTC control */
-	{ /* CE1 */ CE_ATTR_FLAGS, 0, 0,  2048, 512, NULL,},
+	{ /* CE1 */ CE_ATTR_FLAGS, 0, 0,  2048, 64, NULL,},
 	/* target->host WMI */
 	{ /* CE2 */ CE_ATTR_FLAGS | CE_ATTR_HI_TASKLET, 0, 0,  3520, 32, NULL,},
 	/* host->target WMI */