remoteproc: qcom: q6v5-mss: add powerdomains to MSM8996 config

MSM8996 follows the rest of MSS devices and requires a vote on MX and CX
power domains. Add corresponding entry to the device data.

Fixes: 4760a896 ("remoteproc: q6v5-mss: Vote for rpmh power domains")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220704162202.819051-1-dmitry.baryshkov@linaro.org

drivers/remoteproc/qcom_q6v5_mss.c

@@ -2225,6 +2225,11 @@ static const struct rproc_hexagon_res msm8996_mss = {
 			"mnoc_axi",
 			NULL
 	},
+	.proxy_pd_names = (char*[]){
+			"mx",
+			"cx",
+			NULL
+	},
 	.need_mem_protection = true,
 	.has_alt_reset = false,
 	.has_mba_logs = false,