test st7735 on lpc1768 with mbed v5. bug with spi frequency...

Revision:
1:121b61eeffe7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ST7735.lib	Wed Apr 08 14:52:09 2020 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/SomeRandomBloke/code/Adafruit_ST7735/#c964b41674fc