[cmake] add native build preset in aarch64

Signed-off-by: lizzie <lizzie@eden-emu.dev>

CMakeLists.txt

@@ -377,6 +377,8 @@ endif()
 # Build/optimization presets
 if (PLATFORM_LINUX OR CXX_CLANG)
     if (ARCHITECTURE_x86_64)
+        # See https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html
+        # Generic supports Pentium Pro instruction set and above
         set(YUZU_BUILD_PRESET "custom" CACHE STRING "Build preset to use. One of: custom, generic, v3, zen2, zen4, native")
         if (${YUZU_BUILD_PRESET} STREQUAL "generic")
             set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=x86-64 -mtune=generic")
@@ -395,13 +397,17 @@ if (PLATFORM_LINUX OR CXX_CLANG)
             set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=native -mtune=native")
         endif()
     elseif(ARCHITECTURE_arm64)
-        set(YUZU_BUILD_PRESET "custom" CACHE STRING "Build preset to use. One of: custom, generic, armv9")
+        # See https://gcc.gnu.org/onlinedocs/gcc/AArch64-Options.html
+        set(YUZU_BUILD_PRESET "custom" CACHE STRING "Build preset to use. One of: custom, generic, armv9, native")
         if (${YUZU_BUILD_PRESET} STREQUAL "generic")
             set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=armv8-a -mtune=generic")
             set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=armv8-a -mtune=generic")
         elseif (${YUZU_BUILD_PRESET} STREQUAL "armv9")
             set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=armv9-a -mtune=generic")
             set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=armv9-a -mtune=generic")
+        elseif (${YUZU_BUILD_PRESET} STREQUAL "native")
+            set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=native -mtune=native")
+            set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=native -mtune=native")
         endif()
     endif()
 endif()