[nrf noup] boot: zephyr: remove CONFIG_DEBUG=y in prj.conf

This commit removes the `CONFIG_DEBUG=y` setting from Zephyr prj.conf
to save on flash size.

Signed-off-by: Torsten Rasmussen <[email protected]>
Signed-off-by: Johann Fischer <[email protected]>
Signed-off-by: Sebastian Bøe <[email protected]>
Signed-off-by: Torsten Rasmussen <[email protected]>
Signed-off-by: Jamie McCrae <[email protected]>
(cherry picked from commit c56439c)

Author: tejlmand

boot/zephyr/prj.conf

@@ -1,4 +1,3 @@
-CONFIG_DEBUG=y
 CONFIG_PM=n
 
 CONFIG_MAIN_STACK_SIZE=10240