ASoC: soc-pcm: cleanup dpcm_dai_trigger_fe_be()

ASoC: soc-pcm: cleanup dpcm_dai_trigger_fe_be()

DPCM is already difficult to read, but now dpcm_dai_trigger_fe_be() even
difficult to read.

	static int dpcm_dai_trigger_fe_be(.., fe_first)
	{
 ^		if (fe_first) {
(A)			...
 |(x)			goto end;
 v		}
 ^
(B)		...
 v
	end:
		return ...
	}

It want to switch function call order by using "fe_first" for fe->be
order part (A), or be->fe order part (B). But the code is using "goto"
in last of (A) (=x).
Just use "if..else" for (A) (B) is easy to read and understand what it
want to do.

	static int dpcm_dai_trigger_fe_be(.., fe_first)
	{
 ^		if (fe_first) {
(A)			...
 v		}
 ^		else {
(B)			...
 v		}
		return ...
	}

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://patch.msgid.link/87ikpfyjyo.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>