package_rpm.bbclass: Avoid unnecessary installs in complementary pass

package_rpm.bbclass: Avoid unnecessary installs in complementary pass

When called with the complementary install option, the first step is to
backup the install manifest so that we can avoid installing items previously
installed.  However, this backup process skipped the initial_install portion
of the manifest, causing early install items like libc6, bash, and base-files
to be installed a second time.

Fix this by cating the files to original_solution.  This is done as an append to
allow multiple calls to package_install_internal_rpm to work.

(From OE-Core rev: af9fd7566a5de4716a202922f5eabb13a412f2fb)

Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>