Patch early env rename

Author: thinkyhead

.travis.yml

@@ -30,7 +30,7 @@ env:
   - TEST_PLATFORM="adafruit_grandcentral_m4"
   - TEST_PLATFORM="sanguino_atmega1284p"
   - TEST_PLATFORM="sanguino_atmega644p"
-  - TEST_PLATFORM="STM32F103R"
+  - TEST_PLATFORM="STM32F1"
   #- TEST_PLATFORM="BIGTREE_SKR_MINI"
   #- TEST_PLATFORM="fysetc_STM32F1"
   - TEST_PLATFORM="alfawise_U20"