build: fix Windows build

build: fix Windows build

While most windows apps can handle both "\" and "/" as path separators,
"more" is treating the "/" as the start of a command-line flag in this
case, causing errors.

Fixes: cba806e07d6f ("build: change ABI versioning to global")
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: Ranjit Menon <ranjit.menon@intel.com>
Tested-by: Pallavi Kadam <pallavi.kadam@intel.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>