arm64: dts: qcom: sdm845-xiaomi-beryllium: enable second wifi channel

Like the c630, the Poco F1 is also capable of using both antenna
channels for 2.4 and 5ghz wifi, however unlike the c630 only the first
channel is used for bluetooth. Similar to Oneplus 6.

Signed-off-by: Joel Selvaraj <jo@jsfamily.in>
Reviewed-by: Caleb Connolly <caleb@connolly.tech>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/BY5PR02MB7009E2566F9000F338432761D91F9@BY5PR02MB7009.namprd02.prod.outlook.com