Update directory-climbing path in context-info.sh

A path containing '../../' was defined in relation to a directory in the
tests/data_files directory. Since this has been moved to
framework/data_files, we must update the path to refer correctly to the
same location as before.

Signed-off-by: David Horstmann <david.horstmann@arm.com>
diff --git a/tests/context-info.sh b/tests/context-info.sh
index ed31df0..6c08b86 100755
--- a/tests/context-info.sh
+++ b/tests/context-info.sh
@@ -401,7 +401,7 @@
          -u "Finished. No valid base64 code found"
 
 run_test "Not empty file without base64 code" \
-         "../../context-info.sh" \
+         "../../../tests/context-info.sh" \
          -n "Deserializing"
 
 run_test "Binary file instead of text file" \