xtest: regression_2000: close session before re-opening TA

Close session before re-opening a TA with the same session
TEEC_Session variable.

Signed-off-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
diff --git a/host/xtest/regression_2000.c b/host/xtest/regression_2000.c
index e7770c3..4f89d12 100644
--- a/host/xtest/regression_2000.c
+++ b/host/xtest/regression_2000.c
@@ -789,6 +789,7 @@
 	ADBG_EXPECT_TEEC_RESULT(c, TEEC_ERROR_TARGET_DEAD,
 				socket_ioctl(&session, &sh, 0x32 << 24,
 				buf, &blen, &ret_orig));
+	TEEC_CloseSession(&session);
 
 	Do_ADBG_EndSubCase(c, "UDP Socket ioctl");
 
@@ -830,6 +831,7 @@
 	ADBG_EXPECT_BUFFER(c, buf2, blen, buf, blen);
 	ADBG_EXPECT_TRUE(c, !server_iostate.rfail);
 	Do_ADBG_EndSubCase(c, "UDP Socket recv");
+	TEEC_CloseSession(&session);
 
 	Do_ADBG_EndSubCase(c, "UDP Socket change port");