STM32F103.. reorganization, SKR mini fix (#15398)

buildroot/share/tests/STM32F103VE_longer-tests

@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+#
+# Build tests for STM32F103VET6
+#
+
+# exit on first failure
+set -e
+
+use_example_configs Alfawise/U20
+opt_set MOTHERBOARD BOARD_LONGER3D_LK
+opt_set SERIAL_PORT 1
+opt_enable BAUD_RATE_GCODE
+exec_test $1 $2 "Full-featured U20 config"
+
+# cleanup
+restore_configs