dt-bindings: remoteproc: qcom: Add SC7280 WPSS support

Add WPSS PIL loading support for SC7280 SoCs.

Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Manikanta Pubbisetty <quic_mpubbise@quicinc.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1643712724-12436-3-git-send-email-quic_mpubbise@quicinc.com