dt-bindings: arm: qcom: Fix Nexus 4 vendor prefix

The Nexus 4 (mako) was accidentally described as a Asus device, while it's LG.

Fixes: 9304af37

 ("dt-bindings: arm: qcom, add missing devices")
Signed-off-by: David Heidelberg <david@ixit.cz>
[bjorn: Updated commit message, per suggestion from Konrad Dybcio]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211020001327.37490-1-david@ixit.cz