qcacmn: Abstract the qdf_in_interrupt API

The qdf_in_interrupt API was defined in the internal
Linux util file.
Move the API from internal to qdf_util.h and provide
the appropriate abstraction

CRs-Fixed: 2853590
Change-Id: I512155776275684223c1901d789853d2529fcc83

qdf/linux/src/i_qdf_util.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2020 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2014-2021 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -169,10 +169,7 @@ static inline bool __qdf_is_macaddr_equal(struct qdf_mac_addr *mac_addr1,
 	return 0 == memcmp(mac_addr1, mac_addr2, QDF_MAC_ADDR_SIZE);
 }
 
-/**
- * qdf_in_interrupt - returns true if in interrupt context
- */
-#define qdf_in_interrupt          in_interrupt
+#define __qdf_in_interrupt in_interrupt
 
 #define __qdf_min(_a, _b) min(_a, _b)
 #define __qdf_max(_a, _b) max(_a, _b)