MDEV-37001 Enable building RocksDB on non-Linux aarch64 OSes

Now that RocksDB has been synced up to 6.29 which includes the changes
mentioned in the CMake comment support for building on non-Linux aarch64
OSes can be enabled.

storage/rocksdb/CMakeLists.txt

@@ -76,15 +76,6 @@ IF(MSVC_ARM64)
  SKIP_ROCKSDB_PLUGIN("Windows ARM64 not supported")
 ENDIF()
 
-#
-# Also, disable on ARM64 when not Linux
-# Requires submodule update to v6.16.3
-# containing commit https://github.com/facebook/rocksdb/commit/ee4bd4780b321ddb5f92a0f4eb956f2a2ebd60dc
-#
-IF(CMAKE_SYSTEM_PROCESSOR MATCHES "(arm64|aarch64)" AND NOT CMAKE_SYSTEM_NAME STREQUAL "Linux")
-  SKIP_ROCKSDB_PLUGIN("ARM64 disabled on all except Linux")
-ENDIF()
-
 # This plugin needs recent C++ compilers (it is using C++11 features)
 # Skip build for the old compilers
 SET(CXX11_FLAGS)

storage/rocksdb/build_rocksdb.cmake

@@ -481,7 +481,7 @@ else()
       util/crc32c_ppc_asm.S)
   endif(CMAKE_SYSTEM_PROCESSOR MATCHES "ppc64")
   # aarch
-  if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|AARCH64")
+  if(CMAKE_SYSTEM_PROCESSOR MATCHES "arm64|aarch64|AARCH64")
     INCLUDE(CheckCXXCompilerFlag)
     CHECK_CXX_COMPILER_FLAG("-march=armv8-a+crc+crypto" HAS_ARMV8_CRC)
     if(HAS_ARMV8_CRC)
@@ -490,7 +490,7 @@ else()
       list(APPEND ROCKSDB_SOURCES
         util/crc32c_arm64.cc)
     endif(HAS_ARMV8_CRC)
-  endif(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|AARCH64")
+  endif(CMAKE_SYSTEM_PROCESSOR MATCHES "arm64|aarch64|AARCH64")
 endif()
 SET(SOURCES)
 FOREACH(s ${ROCKSDB_SOURCES})