arch specific include files, the naming thereof

[Thom May]

the header files in include/arch/*/* currently have very generic names, like
"dso.h". I got bit by this earlier when trying to specify the location of
OpenSSL, which also ships a dso.h
Would anyone have any objections to renaming them as
apr_*_private.h/apr_private_*.h ?
I volunteer to do it, just wondering if people have reasons not too?
-Thom