New needles encrypted tests, blue background bypass brc#1551662

The background is now blue for ppc64le, so add related needles as bypass.
no such problem with ppc64 (BE)

problem initially detected on Rawhide compose 20180204
but still present on f28 compose 20180302
             and Rawhide compose 20180513

Signed-off-by: Michel Normand <normand@linux.vnet.ibm.com>

needles/console/boot_enter_passphrase-blue_background-brc1551662-20180214.json

@@ -0,0 +1,17 @@
+{
+  "area": [
+    {
+      "ypos": 362,
+      "xpos": 3,
+      "width": 257,
+      "height": 31,
+      "type": "match"
+    }
+  ],
+  "tags": [
+    "boot_enter_passphrase"
+  ],
+  "properties": [
+    "workaround"
+  ]
+}

needles/console/boot_enter_passphrase-graphical-blue_background-brc1551662-20180214.json

@@ -0,0 +1,17 @@
+{
+  "area": [
+    {
+      "type": "match",
+      "height": 40,
+      "ypos": 362,
+      "xpos": 395,
+      "width": 33
+    }
+  ],
+  "tags": [
+    "boot_enter_passphrase"
+  ],
+  "properties": [
+    "workaround"
+  ]
+}