zephyr-image.inc: fix runqemu failure

Signed-off-by: Naveen Saini <naveen.kumar.saini@intel.com>

meta-zephyr-core/recipes-kernel/zephyr-kernel/zephyr-image.inc

@@ -10,7 +10,8 @@ do_install() {
     for output in ${ZEPHYR_MAKE_OUTPUT}; do
         if [ -f ${B}/zephyr/${output} ];
         then
-          install -D ${B}/zephyr/${output} ${D}/firmware/
+          output_img=$(echo ${output} | sed -e "s/zephyr/${PN}/g")
+          install -D ${B}/zephyr/${output} ${D}/firmware/${output_img}
         fi
     done
 }