sdl2: Add PCEngine Mini Controller (#1230)

* SDL2: Add PCEngine Mini controller config

* DInput: Fix PCEngine Mini controller labels

* Revert "DInput: Fix PCEngine Mini controller labels"

This reverts commit f51ed0d.

* SDL2: Fix PCEngine Mini controller labels

Author: Ceotom

sdl2/PCEngine PAD.cfg

@@ -0,0 +1,24 @@
+input_device_display_name = "Turbo Controller for PC Engine Mini / TurboGrafx-16 Mini / PC Engine Coregrafx Mini"
+input_driver = "sdl2"
+input_device = "PCEngine PAD"
+input_vendor_id = "0f0d"
+input_product_id = "0138"
+
+input_a_btn = "2"
+input_b_btn = "1"
+input_select_btn = "8"
+input_start_btn = "9"
+
+input_a_btn_label = "I"
+input_b_btn_label = "II"
+input_select_btn_label = "Select"
+input_start_btn_label = "Run"
+
+input_up_btn = "h0up"
+input_down_btn = "h0down"
+input_left_btn = "h0left"
+input_right_btn = "h0right"
+input_up_btn_label = "D-Pad Up"
+input_down_btn_label = "D-Pad Down"
+input_left_btn_label = "D-Pad Left"
+input_right_btn_label = "D-Pad Right"