bitbake: bitbake: hob/builder: Image selection is remembered while changing adv settings

Image selection is remembered correctly even after
advanced settings have been changed.
Selected image was reset even when it was not the case.

Fixes [YOCTO #3228]

(Bitbake rev: 93fb0a2c56100b2bbc8769af9ae2343c05e72193)

Signed-off-by: Cristian Iorga <cristian.iorga@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/ui/crumbs/builder.py

@@ -123,7 +123,6 @@ class Configuration:
         }
 
     def clear_selection(self):
-        self.selected_image = None
         self.selected_recipes = []
         self.selected_packages = []
         self.initial_selected_image = None