qcacmn: Fix bug in recent NAPI scaling change

Fix issue in reverse mapping of scaled NAPI budget.

Change-Id: I61e54122b406eed2189c9c857ca8423a61d38090
CRs-Fixed: 2156349

hif/src/hif_exec.c

@@ -27,7 +27,7 @@
 #define NAPI_BUDGET_TO_INTERNAL_BUDGET(n, s) \
 	(((n) << (s)) - 1)
 #define INTERNAL_BUDGET_TO_NAPI_BUDGET(n, s) \
-	(((n) >> (s)) + 1)
+	(((n) + 1) >> (s))
 
 static struct hif_exec_context *hif_exec_tasklet_create(void);