fuzzing_engine: Add fuzzing engine uclass

This new class of device will provide fuzzing inputs from a fuzzing
engine.

Signed-off-by: Andrew Scull <ascull@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/Makefile b/drivers/Makefile
index 67c8af7..d63fd1c 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -115,6 +115,7 @@
 obj-$(CONFIG_W1_EEPROM) += w1-eeprom/
 
 obj-$(CONFIG_MACH_PIC32) += ddr/microchip/
+obj-$(CONFIG_FUZZ) += fuzz/
 obj-$(CONFIG_DM_HWSPINLOCK) += hwspinlock/
 obj-$(CONFIG_DM_RNG) += rng/
 endif