Cherry-pick local changes to 9.2
Cherry-picked commits:
b711aa8: Add Unix domain socket support to gdbserver 7.9.1.
4c58332: Go back to snprintf rather than strlcpy.
c64829b: Fallback to open if multifs_open fails.
2177073: Fix gdbserver process interruption.
35ee683: Remove gdb hack.
78af0f6: Handle cross compile for locale configuration
dfc5ca4: Set the default gdb osabi to GNU/Linux.
5cbd102: Specify osabi in arm/aarch64 tdescs. (updated)
d378e66: Explicit link -ldl for gdbserver
Test: build
Change-Id: Iea7f0159ad5d4f5edba0db215a96bc85b3f332cd
10 files changed