dt-bindings: phy: qcom,usb-hs-phy: add MSM8226 compatible

Add a compatible for MSM8226 which also uses the USB HS PHY.

Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211118210210.160895-5-luca@z3ntu.xyz