intel: increase max_batch_buffer_size to 150K dwords

Increasing the max batch buffer size allows more relocations per command buffer.
diff --git a/icd/intel/gpu.c b/icd/intel/gpu.c
index d5b33ea..76ee90d 100644
--- a/icd/intel/gpu.c
+++ b/icd/intel/gpu.c
@@ -159,8 +159,8 @@
         break;
     }
 
-    /* 8192 dwords */
-    gpu->max_batch_buffer_size = sizeof(uint32_t) * 8192;
+    /* 150K dwords */
+    gpu->max_batch_buffer_size = sizeof(uint32_t) * 150*1024;
 
     /* the winsys is prepared for one reloc every two dwords, then minus 2 */
     gpu->batch_buffer_reloc_count =