MIPS: lib: memcpy: Add MIPS R6 support
MIPS: lib: memcpy: Add MIPS R6 support

MIPS R6 does not support the unaligned load and store instructions
so we add a special MIPS R6 case to copy one byte at a time if we
need to read/write to unaligned memory addresses.

Signed-off-by: Leonid Yegoshin <d6aca6b5694d055adc6cbbaf8ff810fc31ed7c5d@imgtec.com>
Signed-off-by: Markos Chandras <5cdbcb0e11d2b5ebc39222958c54a1c6329d0c9d@imgtec.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs