Merge changes from topic "db/deps" into integration

* changes:
feat(compiler-rt): update compiler-rt source files
fix(deps): add missing aeabi_memcpy.S
feat(zlib): update zlib source files
d

Merge changes from topic "db/deps" into integration

* changes:
feat(compiler-rt): update compiler-rt source files
fix(deps): add missing aeabi_memcpy.S
feat(zlib): update zlib source files
docs(changelog): add zlib and compiler-rt scope
feat(libfdt): upgrade libfdt source files
docs(prerequisites): upgrade to Mbed TLS 2.28.1

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fix(deps): add missing aeabi_memcpy.S

Add missing aeabi_memcpy.S file from llvm compiler-rt library [1]. This
is required for Aarch32 builds with clang.

[1] https://github.com/llvm/llvm-project.git

fix(deps): add missing aeabi_memcpy.S

Add missing aeabi_memcpy.S file from llvm compiler-rt library [1]. This
is required for Aarch32 builds with clang.

[1] https://github.com/llvm/llvm-project.git

Change-Id: I7fd6ab1e81dd45d24afef49a3eb8fcdcbc5c082f
Signed-off-by: Daniel Boulby <daniel.boulby@arm.com>

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