[dev][board][vim-mali] Remove PDEV_ADD_PBUS_DEVHOST

GPU threads should be hosted in a separate process.

Change-Id: Ia94a7e745833eb10d00a3cae4b85fcdc22b58b46
diff --git a/system/dev/board/vim/vim-mali.c b/system/dev/board/vim/vim-mali.c
index cac602d..a76ca99 100644
--- a/system/dev/board/vim/vim-mali.c
+++ b/system/dev/board/vim/vim-mali.c
@@ -65,7 +65,7 @@
     mali_btis[0].iommu_index = 0;
     mali_btis[0].bti_id      = bti_index;
 
-    zx_status_t status = pbus_device_add(&bus->pbus, &mali_dev, PDEV_ADD_PBUS_DEVHOST);
+    zx_status_t status = pbus_device_add(&bus->pbus, &mali_dev, 0);
     if (status != ZX_OK) {
         zxlogf(ERROR, "vim_mali_init: pbus_device_add failed: %d\n", status);
         return status;