mask out the priority

old-commit-hash: 71930a4b9674037f494b622fb0002904b2e35a2a

selfdrive/modeld/thneed/thneed.cc

@@ -41,6 +41,7 @@ int ioctl(int filedes, unsigned long request, void *argp) {
 
   if (request == IOCTL_KGSL_DRAWCTXT_CREATE) {
     struct kgsl_drawctxt_create *create = (struct kgsl_drawctxt_create *)argp;
+    create->flags &= ~KGSL_CONTEXT_PRIORITY_MASK;
     create->flags |= 1 << KGSL_CONTEXT_PRIORITY_SHIFT;   // priority from 1-15, 1 is max priority
     printf("creating context with flags 0x%x\n", create->flags);
   }