qcacmn: Reduce number of CE to 6 for QCN9000

Reduce the number of CEs used in QCN9000 to 6 since it has only
one mac and requires only 6 CEs. CE7 and CE8 are reserved for FW
and not needed to be configured from host

Change-Id: I989ffdb0219e2628bac5536e25c4cb2dbba6b7fb

hif/src/ce/ce_assignment.h

@@ -919,7 +919,7 @@ static struct CE_pipe_config target_ce_config_wlan_adrastea[] = {
 	{ /* CE11 */ 11, PIPEDIR_IN,  32, 2048, CE_ATTR_FLAGS, 0,},
 };
 
-#define QCN_9000_CE_COUNT 9
+#define QCN_9000_CE_COUNT 6
 /* QCN9000 enable polling mode */
 static struct CE_attr host_ce_config_wlan_qcn9000[] = {
 	/* host->target HTC control and raw streams */