test-tool: add simple REPORT LUNS test

Check for duplicate LUN entries in the REPORT LUNS response.

Signed-off-by: David Disseldorp <ddiss@suse.de>

test-tool/iscsi-test-cu.h

@@ -190,6 +190,8 @@ void test_readonly_sbc(void);
 void test_receive_copy_results_copy_status(void);
 void test_receive_copy_results_op_params(void);
 
+void test_report_luns_simple(void);
+
 void test_report_supported_opcodes_one_command(void);
 void test_report_supported_opcodes_rctd(void);
 void test_report_supported_opcodes_servactv(void);