sptests/spcache01: Make inline assembly conditional to account for OpenRISC l.nop instruction.
libcpu: Add new entry for or1k cpu and include cache manager stubs.
Rename or1k_or1ksim BSP to or1ksim
Add or1k to the list of targets that use IEEE 754 in xdr_float.c
or1ksim BSP: Include cache manager stubs, and re-generate preinstall.am files.