ArmPkg/CompilerIntrinsicsLib: switch to ASM_FUNC() asm macro

Annotate functions with ASM_FUNC() so that they are emitted into
separate sections. Note that in some cases, various entry points
refer to different parts of the same routine, so in those cases,
the files have been left untouched.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>

ArmPkg/Library/CompilerIntrinsicsLib/AArch64/memcpy.S

@@ -26,16 +26,10 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-
-.text
-.align 2
-
-
-GCC_ASM_EXPORT(memcpy)
-
+#include <AsmMacroIoLibV8.h>
 
 // Taken from Newlib BSD implementation.
-ASM_PFX(memcpy):
+ASM_FUNC(memcpy)
         // Copy dst to x6, so we can preserve return value.
         mov     x6, x0