ARM: dts: qcom: msm8974-klte-common: Pin WiFi board type

ARM: dts: qcom: msm8974-klte-common: Pin WiFi board type

klte* variants have little difference in the WiFi part. Without
"brcm,board-type", variant-specific NVRAM file will be probed (e.g.,
klte probes samsung,klte). Pin it to "samsung,klte" to allow klte* to
load the same NVRAM file as klte.

Signed-off-by: Rong Zhang <i@rong.moe>
Acked-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Tested-by: Icenowy Zheng <uwu@icenowy.me>
Link: https://lore.kernel.org/r/20240213110137.122737-3-i@rong.moe
Signed-off-by: Bjorn Andersson <andersson@kernel.org>