Backport SREC output support in llvm-objcopy.

This patch is a combined cherry-pick of three LLVM trunk commits:
7ddc32052546abd41656d2e670f3902b1bf805a7
5afbed1968588fe443a8a55053c2f1eaa321d28e
2cbe5a33a5fda257747d75863bd9ccb8920b9249

The first one implements support in llvm-objcopy for writing output in
the S-record hex format. The other two are tiny fixes for build
failures introduced by the first patch.

These patches were committed on LLVM trunk by the following authors:

7ddc32052546abd (the main patch): quic-areg <[email protected]>
5afbed1968588fe (build fix #1): Jon Roelofs <[email protected]>
2cbe5a33a5fda25 (build fix #2): Maksim Panchenko <[email protected]>

Author: statham-arm

CMakeLists.txt

@@ -265,6 +265,7 @@ set(
     ${CMAKE_CURRENT_SOURCE_DIR}/patches/llvm-project/0004-libc-tests-with-picolibc-mark-sort-test-as-long-one.patch
     ${CMAKE_CURRENT_SOURCE_DIR}/patches/llvm-project/0005-libc-tests-with-picolibc-XFAIL-uses-of-atomics.patch
     ${CMAKE_CURRENT_SOURCE_DIR}/patches/llvm-project/0006-libc-tests-with-picolibc-mark-two-more-large-tests.patch
+    ${CMAKE_CURRENT_SOURCE_DIR}/patches/llvm-project/0007-llvm-objcopy-Support-SREC-output-format-75874.patch
 )
 FetchContent_Declare(llvmproject
     GIT_REPOSITORY https://github.com/llvm/llvm-project.git