Einsy Full Graphic LCD Fix (#11604)

Fixed issue with LCD timings for Einsy RAMBo board.

Marlin/src/lcd/dogm/ultralcd_st7920_u8glib_rrd_AVR.cpp

@@ -60,7 +60,7 @@
   #define CPU_ST7920_DELAY_1 DELAY_NS(0)
   #define CPU_ST7920_DELAY_2 DELAY_NS(188)
   #define CPU_ST7920_DELAY_3 DELAY_NS(0)
-#elif MB(MINIRAMBO)
+#elif MB(MINIRAMBO) || MB(EINSY_RAMBO)
   #define CPU_ST7920_DELAY_1 DELAY_NS(0)
   #define CPU_ST7920_DELAY_2 DELAY_NS(250)
   #define CPU_ST7920_DELAY_3 DELAY_NS(0)