Restore rsa_single_san_uri.crt.der

The file is moved by #7617 and used by #7575. That causes
conflict.

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
diff --git a/tests/data_files/rsa_single_san_uri.crt.der b/tests/data_files/rsa_single_san_uri.crt.der
new file mode 100644
index 0000000..22308c6
--- /dev/null
+++ b/tests/data_files/rsa_single_san_uri.crt.der
Binary files differ