meta-quanta: gbs: rename fan2/3/4 to fb_fan0/1/2

Change the sensor name of fans:
fan2 -> fb_fan0
fan3 -> fb_fan1
fan4 -> fb_fan2

Signed-off-by: George Hung <george.hung@quantatw.com>
Change-Id: I8350457985f757bf665f7c8d441ae3ddfe12e5fc
diff --git a/meta-gbs/recipes-gbs/gbs-ipmi-entity-association-map/files/entity_association_map.json b/meta-gbs/recipes-gbs/gbs-ipmi-entity-association-map/files/entity_association_map.json
index a0992b7..f4e453a 100644
--- a/meta-gbs/recipes-gbs/gbs-ipmi-entity-association-map/files/entity_association_map.json
+++ b/meta-gbs/recipes-gbs/gbs-ipmi-entity-association-map/files/entity_association_map.json
@@ -18,9 +18,9 @@
     "fan": [
         {"instance": 0, "name": "/fan0"},
         {"instance": 1, "name": "/fan1"},
-        {"instance": 2, "name": "/fan2"},
-        {"instance": 3, "name": "/fan3"},
-        {"instance": 4, "name": "/fan4"}
+        {"instance": 2, "name": "/fb_fan0"},
+        {"instance": 3, "name": "/fb_fan1"},
+        {"instance": 4, "name": "/fb_fan2"}
     ],
     "cooling_unit": [
         {"instance": 0, "name": "/ZONE0"},