of: Update qcom vendor prefix description

Update vendor description to be the full name of the corporate entity that
produces the SoCs associated with this prefix.

Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Kumar Gala <galak@codeaurora.org>
Signed-off-by: Rob Herring <robh@kernel.org>

diff --cc Documentation/devicetree/bindings/vendor-prefixes.txt
Simple merge