musl: split openharmony-linux-user.patch file

This change moves the hunk for the file sys/capabilty.h into its own
patch file so it can be ignored.  We will be using the sys/capability.h
header file from libcap instead, to allow using libcap also.

Signed-off-by: Thierry Escande <thierry.escande@huawei.com>
Signed-off-by: Esben Haabendal <esben.haabendal@huawei.com>