VPP-390: include *.so symlinks in vpp-lib

VPP-390: include *.so symlinks in vpp-lib

Currently, vpp-lib rpm includes symlinks for

*.so.0 -> *.so.0.0.0

but not

*.so -> *.so.0.0.0

This causes linker issues in cases where vpp-lib and vpp-devel rpms
are installed and sources are built that rely on libraries in vpp-lib.

Example:

libtool: link: gcc -shared -fPIC -DPIC jvpp/.libs/libjvpp_nsh_la-jvpp_nsh.o -lvlibmemoryclient -lvlibapi -lsvm -lvppinfra -lpthread -lm -lrt -ljvpp_common -L/usr/lib64 -O2 -Wl,-soname -Wl,libjvpp_nsh.so.0 -o .libs/libjvpp_nsh.so.0.0.0
/usr/bin/ld: cannot find -lvlibmemoryclient
/usr/bin/ld: cannot find -lvlibapi
/usr/bin/ld: cannot find -lsvm
/usr/bin/ld: cannot find -lvppinfra
collect2: error: ld returned 1 exit status

Change-Id: Ic8eebc696f973ea348be0b43e7cfb289efbe44fe
Signed-off-by: Ed Warnicke <eaw@cisco.com>