fixup! cmake: remove KURENTO_DOT_DIR
fixup! cmake: remove KURENTO_DOT_DIR

Fix some remaining usages of the old KURENTO_DOT_DIR, that were left by
commit 83e8e6679887d96eff43fffd54e98c424155a53c

Kurento/kms-core,Kurento/kms-core,Kurento/kms-core,Kurento/kms-core