At least two people have reported that `LoadLibrary("advapi32.dll")`
fails in some configurations.
Libuv already links against advapi32.dll so let's sidestep the issue
by linking to `RtlGenRandom()` directly instead of looking it up at
runtime.
Fixes: https://github.com/libuv/libuv/issues/2759
PR-URL: https://github.com/libuv/libuv/pull/2762
Reviewed-By: Bartosz Sosnowski <bartosz@janeasystems.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Jameson Nash <vtjnash@gmail.com>