clearfog: Use new board revision

Yes, this means that I have to care about a single board from now on,
yahoo!

Change-Id: I7b404f22e949dd2ff8e6c0603eeaefda9728ecbe
diff --git a/board/czechlight/clearfog/linux.fragment b/board/czechlight/clearfog/linux.fragment
index 06d0921..20da4ee 100644
--- a/board/czechlight/clearfog/linux.fragment
+++ b/board/czechlight/clearfog/linux.fragment
@@ -21,6 +21,8 @@
 # SPI GPIO expander
 CONFIG_PINCTRL_MCP23S08=y
 
+CONFIG_LEDS_TLC591XX=y
+
 # For the Lumentum OCM
 CONFIG_SPI_SPIDEV=y