Allow read-only of new property for malloc hooks.

Bug: 30561479

Test: Booted on walleye and verified that read denials of the property
Test: do not generate warnings.
Change-Id: I61a4a7d3a360a6d27d8986eb8f3f9662272233b1
(cherry picked from commit 2f35f5ca6cd08e7e9f86b6ea853f594f374819d5)
1 file changed