The mingw linker uses strlen() in some cases, and codeclib.c redefines it, that
leads to mingw runtime init to call into our strlen() and then ci->strlen() which
of course crashes. Apply the same fix as for malloc and friends: rename the symbol.

The codeclib.h include is necessary for normal builds.

Change-Id: Ifa85901a3e4a31cc0e10b4b905df348a239d5c99

This would zero the first 4 or 8 bytes of the array because it is declared as a pointer

rockbox/lib/rbcodec/codecs/libasap/asap.c:1229:44: warning: argument to 'sizeof' in 'memset' call is the same expression as the destination; did you mean to provide an explicit length? [-Wsizeof-pointer-memaccess]
    memset(ast -> memory, 0, sizeof(ast -> memory));
           ~~~~~~~~~~~~~            ~~~~~~~^~~~~~

Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97
Reviewed-on: http://gerrit.rockbox.org/137
Reviewed-by: Nils Wallménius <nils@rockbox.org>
Tested-by: Nils Wallménius <nils@rockbox.org>