Fix cmake build of fuzz_privkey

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
diff --git a/programs/fuzz/CMakeLists.txt b/programs/fuzz/CMakeLists.txt
index 4f35d76..c7fcd35 100644
--- a/programs/fuzz/CMakeLists.txt
+++ b/programs/fuzz/CMakeLists.txt
@@ -8,7 +8,6 @@
 endif()
 
 set(executables_no_common_c
-    fuzz_privkey
     fuzz_pubkey
     fuzz_x509crl
     fuzz_x509crt
@@ -16,6 +15,7 @@
 )
 
 set(executables_with_common_c
+    fuzz_privkey
     fuzz_client
     fuzz_dtlsclient
     fuzz_dtlsserver