logging: Increase stack size when NO_OPTIMIZATIONS=y

Increase stack size when optimization is disabled.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
diff --git a/subsys/logging/Kconfig.processing b/subsys/logging/Kconfig.processing
index 6ac41ae..694bf10 100644
--- a/subsys/logging/Kconfig.processing
+++ b/subsys/logging/Kconfig.processing
@@ -91,7 +91,7 @@
 	default 2048 if (RISCV && 64BIT)
 	default 2048 if LOG_BACKEND_FS
 	default 1152 if LOG_BACKEND_NET
-	default 1024 if NO_OPTIMIZATIONS
+	default 4096 if NO_OPTIMIZATIONS
 	default 1024 if XTENSA
 	default 768
 	help