Use original ESP8266-specific speeds for SPI speeds

earlephilhower · earlephilhower · commit 28710e1527ca · 2019-04-29T09:18:28.000-07:00
Replace the default SPI_FULL/HALF/QUARTER_SPEEDs with ESP8266 appropriate ones taken from the original SD library that @igrr modified. Fixes esp8266#6019
diff --git a/libraries/ESP8266SdFat b/libraries/ESP8266SdFat
@@ -1 +1 @@
-Subproject commit 92ab4b59eb920bf3134347dbe07e7c059eb64d46
+Subproject commit d62358111bf1ba2d55498b5c8a14d54e74b8fd92
