Fix CLEAN step for parse_seccomp_policy.

Bug: None
Test: make parse_seccomp_policy; make clean.
Change-Id: I323bfeedb4042e93dbc316d0f58d49874720da08
diff --git a/Makefile b/Makefile
index eaca279..a102dbf 100644
--- a/Makefile
+++ b/Makefile
@@ -94,7 +94,7 @@
 
 CXX_BINARY(parse_seccomp_policy): parse_seccomp_policy.o syscall_filter.o \
 		bpf.o util.o libconstants.gen.o libsyscalls.gen.o
-clean: CLEAN(parse_policy)
+clean: CLEAN(parse_seccomp_policy)
 
 
 libsyscalls.gen.o: CPPFLAGS += -I$(SRC)