Change order of creation of JIT mappings.

To ensure we don't create mappings that can later be turned into
writable mappings.

Ignore-AOSP-First: b/200284993

Test: jit_memory_region_test
Test: device booting
Bug: 200284993
Change-Id: I5160e61d287207563af57b71d50b08364ca892a0
2 files changed