[qca-nss-sfe] Add source interface check validation

Change-Id: Ic2bbe856505c17c2d5c3c01edc21fda9bfba2e5c
Signed-off-by: Ratheesh Kannoth <quic_rkannoth@quicinc.com>
diff --git a/exports/sfe_api.h b/exports/sfe_api.h
index 3e643f1..5a01604 100644
--- a/exports/sfe_api.h
+++ b/exports/sfe_api.h
@@ -44,6 +44,7 @@
 #define SFE_RULE_CREATE_FLAG_L2_ENCAP     (1<<7) /**< consists of an encapsulating protocol that carries an IPv4 payload within it. */
 #define SFE_RULE_CREATE_FLAG_USE_FLOW_BOTTOM_INTERFACE (1<<8) /**< Use flow interface number instead of top interface. */
 #define SFE_RULE_CREATE_FLAG_USE_RETURN_BOTTOM_INTERFACE (1<<9) /**< Use return interface number instead of top interface. */
+#define SFE_RULE_CREATE_FLAG_SRC_INTERFACE_CHECK  (1<<10)  /**< Check source interface. */
 
 /**
  * Rule creation validity flags.