ASoC: cs-amp-lib-test: Fix missing include of kunit/test-bug.h

cs-amp-lib-test uses functions from kunit/test-bug.h but wasn't
including it.

This error was found by smatch.

Fixes: 1778623 ("ASoC: cs-amp-lib: Add KUnit test for calibration helpers")
Signed-off-by: Richard Fitzgerald <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>

Author: rfvirgil

sound/soc/codecs/cs-amp-lib-test.c

@@ -7,6 +7,7 @@
 
 #include <kunit/resource.h>
 #include <kunit/test.h>
+#include <kunit/test-bug.h>
 #include <kunit/static_stub.h>
 #include <linux/device/faux.h>
 #include <linux/firmware/cirrus/cs_dsp.h>