[Keyboard] move ymd75 to ymdk vendor folder (#15645)

keyboards/ymd75/ymd75.h

@@ -1,11 +0,0 @@
-#pragma once
-
-#include "quantum.h"
-
-#if defined(KEYBOARD_ymd75_rev1)
-    #include "rev1.h"
-#elif defined(KEYBOARD_ymd75_rev2)
-    #include "rev2.h"
-#elif defined(KEYBOARD_ymd75_rev3)
-    #include "rev3.h"
-#endif

keyboards/ymdk/ymd75/readme.md

@@ -13,11 +13,11 @@ This firmware can also be flashed onto the KBDFans KBD75 Round 2 Bootmapper Clie
 
 Make example for this keyboard (after setting up your build environment):
 
-    make ymd75/rev1:default
+    make ymdk/ymd75/rev1:default
 
 Flashing example for this keyboard ([after setting up the bootloadHID flashing environment](https://docs.qmk.fm/#/flashing_bootloadhid))
 
-    make ymd75/rev1:default:flash
+    make ymdk/ymd75/rev1:default:flash
 
 **Reset Key**: Hold down the key located at *Key below the top right key*, commonly programmed as *Backspace* while plugging in the keyboard. On PCB revision 2, enter the bootloader by holding `L_CTRL` while plugging in the keyboard.
 

keyboards/ymdk/ymd75/ymd75.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#include "quantum.h"
+
+#if defined(KEYBOARD_ymdk_ymd75_rev1)
+    #include "rev1.h"
+#elif defined(KEYBOARD_ymdk_ymd75_rev2)
+    #include "rev2.h"
+#elif defined(KEYBOARD_ymdk_ymd75_rev3)
+    #include "rev3.h"
+#endif