[Spec] Add the provides section

[Spec] Add the provides section

Since rpmbuild explicitly exclude the name from the library rpm,
libcapi-nnstreamer.so is not provided as below.

$ rpm -qp --provides capi-machine-learning-inference-1.7.2-0.armv7l.rpm
capi-machine-learning-inference = 1.7.2-0
capi-machine-learning-inference(armv7l-32) = 1.7.2-0
libcapi-nnstreamer.so.1

This patch adds the provides section to capi-machine-learning-inference
package so that capi-machine-learning-inference provides
libcapi-nnstreamer.so.

Signed-off-by: Sangjung Woo <sangjung.woo@samsung.com>