arm64: dts: qcom: sm8650: Fix GPU cx_mem size

This is doubled compared to previous GPUs. We can't access the new
SW_FUSE_VALUE register without this.

Fixes: db33633 ("arm64: dts: qcom: sm8650: add GPU nodes")
Signed-off-by: Connor Abbott <cwabbott0@gmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20240426-a750-raytracing-v2-1-562ac9866d63@gmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

Author: cwabbott0

arch/arm64/boot/dts/qcom/sm8650.dtsi

@@ -2614,7 +2614,7 @@
 		gpu: gpu@3d00000 {
 			compatible = "qcom,adreno-43051401", "qcom,adreno";
 			reg = <0x0 0x03d00000 0x0 0x40000>,
-			      <0x0 0x03d9e000 0x0 0x1000>,
+			      <0x0 0x03d9e000 0x0 0x2000>,
 			      <0x0 0x03d61000 0x0 0x800>;
 			reg-names = "kgsl_3d0_reg_memory",
 				    "cx_mem",