dt-bindings: interconnect: Remove sc7180/sdx55 ipa compatibles

These interconnects are modeled as clks, not interconnects, therefore
remove the compatibles from the binding as they're unused.

Cc: Alex Elder <elder@linaro.org>
Cc: Taniya Das <quic_tdas@quicinc.com>
Cc: Mike Tipton <quic_mdtipton@quicinc.com>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20220415005828.1980055-3-swboyd@chromium.org


Signed-off-by: Georgi Djakov <djakov@kernel.org>