Allow prng_seeder utility

Give //system/security/prng_seeder access to ctrdrbg.h

Bug: 243933553
Test: Started under init and verified correct operation using strace
Change-Id: If18124d50d97d93541e5c040b506484a48ee40ac
Merged-In: If18124d50d97d93541e5c040b506484a48ee40ac
(cherry picked from commit 4ea336a10142019b185fffd2f800fb02e5f2d46e)
(cherry picked from commit b034aa0d4ed11513326083a3496add8a37ab987c)
Merged-In: If18124d50d97d93541e5c040b506484a48ee40ac
2 files changed