ASoC: uniphier: evea: fix typo 'eva' -> 'evea'

Signed-off-by: Katsuhiro Suzuki <suzuki.katsuhiro@socionext.com>
Reviewed-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>