arch/arm: Add mmiocpy/set aliases for memcpy/set

See: #1082

Author: Phil Elwell

arch/arm/lib/memcpy_rpi.S

@@ -54,6 +54,8 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 .set prefetch_distance, 3
 
+ENTRY(mmiocpy)
 ENTRY(memcpy)
         memcpy  0
 ENDPROC(memcpy)
+ENDPROC(mmiocpy)

arch/arm/lib/memset_rpi.S

@@ -50,6 +50,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *  On exit:
  *  a1 preserved
  */
+ENTRY(mmioset)
 ENTRY(memset)
         S       .req    a1
         DAT0    .req    a2
@@ -119,3 +120,4 @@ ENTRY(memset)
         .unreq  DAT2
         .unreq  DAT3
 ENDPROC(memset)
+ENDPROC(mmioset)