interconnect: qcom: sm8650: remove regmap config for mc_virt & clk_virt

The mc_virt & clk_virt nodes are virtual and doesn't have associated registers,
thus the regmap config will fail with:
qnoc-sm8650 interconnect-0: error -EINVAL: invalid resource (null)

Remove the regmap config since QoS will never be applied to those virtual
nodes.

Reported-by: Pengyu Luo <[e-mail]>
Fixes: 40ef9b6b778f ("interconnect: qcom: sm8650: enable QoS configuration")
Signed-off-by: Neil Armstrong <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Georgi Djakov <[e-mail]>

drivers/interconnect/qcom/sm8650.c

···
 };
 
 static const struct qcom_icc_desc sm8650_clk_virt = {
-	.config = &icc_regmap_config,
 	.nodes = clk_virt_nodes,
 	.num_nodes = ARRAY_SIZE(clk_virt_nodes),
 	.bcms = clk_virt_bcms,
···
 };
 
 static const struct qcom_icc_desc sm8650_mc_virt = {
-	.config = &icc_regmap_config,
 	.nodes = mc_virt_nodes,
 	.num_nodes = ARRAY_SIZE(mc_virt_nodes),
 	.bcms = mc_virt_bcms,