I find a "solution" for this issue. (Waiting to google fix this and provide a x64 support libs, not definitive)
Practically all mobiles use a ARM process, so this solution may not works in devices with x64 architecture, i not test
Basically to google let you to publish we create a x86_64 folder in the native libs folder(we have to find where is the native libs on our project) and copy the 32 bit .so files (in x86 folder)
Obviously this is not a definitive solution so is the best that i found to google allow me to publish app