v3dv: fix multi-layered buffer to image copies on the blit path

Reviewed-by: Alejandro PiƱeiro <apinheiro@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7247>
diff --git a/src/broadcom/vulkan/v3dv_meta_copy.c b/src/broadcom/vulkan/v3dv_meta_copy.c
index 0ba96b8..d8105bc 100644
--- a/src/broadcom/vulkan/v3dv_meta_copy.c
+++ b/src/broadcom/vulkan/v3dv_meta_copy.c
@@ -2674,8 +2674,8 @@
          .dstSubresource = {
             .aspectMask = aspect,
             .mipLevel = region->imageSubresource.mipLevel,
-            .baseArrayLayer = region->imageSubresource.baseArrayLayer,
-            .layerCount = region->imageSubresource.layerCount,
+            .baseArrayLayer = region->imageSubresource.baseArrayLayer + i,
+            .layerCount = 1,
          },
          .dstOffsets = {
             {