Fix keylayouts to use BACK instead of incorrect BUTTON_BACK.

Fix duplicate keys in a couple of the onza controllers.  Also, add them to the
Makefile so they actually get included in the build.

Bug: 8292749
Change-Id: I8246155f84d0c3c75b21e37fb579227fda76e197
diff --git a/data/keyboards/Vendor_1689_Product_fd00.kl b/data/keyboards/Vendor_1689_Product_fd00.kl
index 6ce14ed..8407b13 100644
--- a/data/keyboards/Vendor_1689_Product_fd00.kl
+++ b/data/keyboards/Vendor_1689_Product_fd00.kl
@@ -18,11 +18,11 @@
 key 305 BUTTON_B
 key 307 BUTTON_X
 key 308 BUTTON_Y
-key 307 BUTTON_L1
-key 308 BUTTON_R1
+key 310 BUTTON_L1
+key 311 BUTTON_R1
 key 315 BUTTON_START
-key 314 BUTTON_BACK
-key 316 BUTTON_HOME
+key 314 BACK
+key 316 HOME
 key 317 BUTTON_THUMBL
 key 318 BUTTON_THUMBR
 key 706 DPAD_UP