qcacmn: Use global variable for cpumask

Local variable is used to store cpumask to send it to
irq_set_affinity_hint and qdf_dev_set_irq_affinity APIs.
This memory is used by the kernel later outside the
current contect resulting in invalid memory access.

Fix this by using global variables to store cpumask.

Change-Id: I086f40bf1b3499d2c2ccb1ce18140b2dc2761d04
CRs-Fixed: 2373548

hif/inc/hif.h

@@ -190,6 +190,7 @@ struct qca_napi_info {
 	uint8_t              id;
 	uint8_t              cpu;
 	int                  irq;
+	cpumask_t            cpumask;
 	struct qca_napi_stat stats[NR_CPUS];
 #ifdef RECEIVE_OFFLOAD
 	/* will only be present for data rx CE's */