arm64: dts: qcom: qrb4210-rb2: Enable MPSS and Wi-Fi

arm64: dts: qcom: qrb4210-rb2: Enable MPSS and Wi-Fi

Enable the remote processors and tighten up the regulators to enable
Wi-Fi functionality on the RB2.

For reference, the hw/sw identifies as:

qmi chip_id 0x150 chip_family 0x4002 board_id 0xff soc_id 0x40670000
qmi fw_version 0x337302d3 fw_build_timestamp 2023-01-06 01:50
fw_build_id QC_IMAGE_VERSION_STRING=WLAN.HL.3.3.7.c2-00723-QCAHLSWMTPLZ-1
wcn3990 hw1.0 target 0x00000008 chip_id 0x00000000 sub 0000:0000
kconfig debug 0 debugfs 0 tracing 0 dfs 0 testmode 0
firmware ver  api 5 features wowlan,mgmt-tx-by-reference,non-bmi
crc32 b3d4b790
htt-ver 3.114 wmi-op 4 htt-op 3 cal file max-sta 32 raw 0 hwcrypto 1

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20231104-topic-rb2_wifi-v1-1-fd45ae535d2f@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>