ASoC: codecs: lpass-wsa-macro: remove unnecessary bounds check

ASoC: codecs: lpass-wsa-macro: remove unnecessary bounds check

WSA_MACRO_RX0 is 0 and WSA_MACRO_RX_MIX1 is (WSA_MACRO_RX_MAX-1), which
means it is not possible for the bounds check to fail.

Removing the WSA_MACRO_RX_MIX1 limit is needed to add support for other
ports (RX4, RX5, etc.), in which case the valid range depends on the HW
version: rely on the driver only setting valid ports in active_ch_mask
instead (already the case).

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Tested-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Link: https://patch.msgid.link/20251117051523.16462-1-jonathan@marek.ca
Signed-off-by: Mark Brown <broonie@kernel.org>