The qemuarm64 kernel builds loopback device support as a module and it isn't included
in the image leading to ltp test failures on that platform.
Add the missing kernel module RRECOMMENDS to avoid this and fix those errors.
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
tar \
"
+RRECOMMENDS:${PN} += "kernel-module-loop"
+
FILES:${PN} += "${prefix}/* ${prefix}/runtest/* ${prefix}/scenario_groups/* ${prefix}/testcases/bin/* ${prefix}/testcases/bin/*/bin/* ${prefix}/testscripts/* ${prefix}/testcases/open_posix_testsuite/* ${prefix}/testcases/open_posix_testsuite/conformance/* ${prefix}/testcases/open_posix_testsuite/Documentation/* ${prefix}/testcases/open_posix_testsuite/functional/* ${prefix}/testcases/open_posix_testsuite/include/* ${prefix}/testcases/open_posix_testsuite/scripts/* ${prefix}/testcases/open_posix_testsuite/stress/* ${prefix}/testcases/open_posix_testsuite/tools/* ${prefix}/testcases/data/nm01/lib.a ${prefix}/lib/libmem.a"
# Avoid stripping some generated binaries otherwise some of the ltp tests such as ldd01 & nm01 fail