qcacmn: Use qdf macro for epping mode

Use QDF macro to check if we are in epping mode.
Hardcode the ce engine to use interrupts in
epping mode.

Change-Id: Ie58c2efffdced03f24905469319eabc0af4ed228
CRs-Fixed: 1003792

qdf/inc/qdf_types.h

@@ -322,6 +322,8 @@ enum tQDF_GLOBAL_CON_MODE {
 	QDF_GLOBAL_MAX_MODE
 };
 
+#define  QDF_IS_EPPING_ENABLED(mode) (mode == QDF_GLOBAL_EPPING_MODE)
+
 #define qdf_print(args...) \
 	QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR, ## args)