When resetting and clearing all selections the searched for term is no
longer the selected row in the packages list, clear the search entry to
prevent cognitive disconnect.
(Bitbake rev: 4f86f5763ecf7f3a9673a9b18e96042e9387699b)
Signed-off-by: Joshua Lock <josh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>