Add error when RPK is used with DANE stub #15

Job	Run time
Windows MASM AES-GCM-SIV (x64)	1m 33s
make check (--enable-cryptonly --enable-aesgcm-siv CPPFLAGS=-DGCM_SMALL)	35s
make check (--enable-cryptonly --enable-all-crypto --enable-intelasm --enable-sp-asm --enable-aesgcm-siv)	59s
make check (--enable-cryptonly --enable-aesgcm-siv)	36s
make check (--enable-cryptonly --enable-intelasm --enable-sp-asm --enable-aesgcm-siv)	38s
Cross-arch test	3m 34s
make check (--enable-cryptonly --enable-aesgcm-siv CPPFLAGS=-DGCM_WORD32)	33s
make check (--enable-cryptonly --enable-aesgcm-siv --enable-smallstack)	46s
	9m 14s

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