Fix dont_skip_on_early_ro to be read only again

commit 4509966315ca9334d4637f8f364a34a12985ab13 accidently removed
the read only attribute from this flag.

Bug: 307674749
Bug: 273702768
Change-Id: I27ff11077226d5bc13731f4fd86dff0dc183ea47
1 file changed