Fix a typo in the host endianness macro and add a simple test to detect
regressions.
Fixes: 9bb0048ec6 ("target/ppc: convert xxspltw to vector operations")
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220310172047.61094-1-matheus.ferst@eldorado.org.br>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
