arm64: dts: qcom: sm8450: Add qup nodes for qup2

qup2 has 7 SEs, so add the SEs (i2c and spi) along with pinconf for
these SEs

Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220414101630.1189052-6-vkoul@kernel.org