soc: qcom: stats: Add SDM845 stats config and compatible

SDM845 is a special case compared to the other platforms that use RPMh
stats, since it only has 2 stats (aosd and cxsd), while the others have
a 3rd one (ddr).

So lets add dedicated stats config and compatible for SDM845 to make the
driver aware of this num_records difference.
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20220812101240.1869605-2-abel.vesa@linaro.org

drivers/soc/qcom/qcom_stats.c

@@ -246,6 +246,14 @@ static const struct stats_config rpm_data_dba0 = {
 	.subsystem_stats_in_smem = false,
 };
 
+static const struct stats_config rpmh_data_sdm845 = {
+	.stats_offset = 0x48,
+	.num_records = 2,
+	.appended_stats_avail = false,
+	.dynamic_offset = false,
+	.subsystem_stats_in_smem = true,
+};
+
 static const struct stats_config rpmh_data = {
 	.stats_offset = 0x48,
 	.num_records = 3,
@@ -261,6 +269,7 @@ static const struct of_device_id qcom_stats_table[] = {
 	{ .compatible = "qcom,msm8974-rpm-stats", .data = &rpm_data_dba0 },
 	{ .compatible = "qcom,rpm-stats", .data = &rpm_data },
 	{ .compatible = "qcom,rpmh-stats", .data = &rpmh_data },
+	{ .compatible = "qcom,sdm845-rpmh-stats", .data = &rpmh_data_sdm845 },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, qcom_stats_table);