NFC: st21nfca: Add __packed to struct st21nfca_pipe_info

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

drivers/nfc/st21nfca/st21nfca.c

@@ -89,7 +89,7 @@ struct st21nfca_pipe_info {
 	u8 src_gate_id;
 	u8 dst_host_id;
 	u8 dst_gate_id;
-};
+} __packed;
 
 /* Largest headroom needed for outgoing custom commands */
 #define ST21NFCA_CMDS_HEADROOM  7