Add missing layout data for ibmq_casablanca. (#5492)

Co-authored-by: Luciano Bello <luciano.bello@ibm.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
(cherry picked from commit 7f45f5b)

qiskit/visualization/gate_map.py

@@ -132,6 +132,12 @@ def plot_gate_map(backend, figsize=None,
 
     mpl_data[1] = [[0, 0]]
 
+    mpl_data[5] = [[1, 0], [0, 1], [1, 1], [1, 2], [2, 1]]
+
+    mpl_data[7] = [[0, 0], [0, 1], [0, 2],
+                   [1, 1],
+                   [2, 0], [2, 1], [2, 2]]
+
     mpl_data[20] = [[0, 0], [0, 1], [0, 2], [0, 3], [0, 4],
                     [1, 0], [1, 1], [1, 2], [1, 3], [1, 4],
                     [2, 0], [2, 1], [2, 2], [2, 3], [2, 4],
@@ -145,8 +151,6 @@ def plot_gate_map(backend, figsize=None,
                     [0, 4], [0, 5], [0, 6], [0, 7], [1, 7],
                     [1, 6], [1, 5], [1, 4], [1, 3], [1, 2], [1, 1]]
 
-    mpl_data[5] = [[1, 0], [0, 1], [1, 1], [1, 2], [2, 1]]
-
     mpl_data[27] = [[1, 0], [1, 1], [2, 1], [3, 1], [1, 2],
                     [3, 2], [0, 3], [1, 3], [3, 3], [4, 3],
                     [1, 4], [3, 4], [1, 5], [2, 5], [3, 5],