8173100: AArch64: -XX:-UseOnStackReplacement does not work together with -XX:+TieredCompilation
Summary: Fix hotspot jtreg test compiler/interpreter/DisableOSRTest.java failure on AArch64.
Reviewed-by: aph, fyang
8199752: NMT: Memory allocated by Unsafe.allocateMemory should be tagged as mtOther
Summary: Tag memory allocation from Usafe.allocateMemory as external memory allocation
Reviewed-by: coleenp, stuefe