Revert "turn off inline-unit-growth and max-inline-insns-auto uses"

This reverts commit 94d76e0.

Author: dhalbert

ports/atmel-samd/Makefile

@@ -150,8 +150,7 @@ else
   CFLAGS += -flto -flto-partition=none
 
   ifeq ($(CIRCUITPY_FULL_BUILD),0)
-    # This is making the build larger in some cases (gcc 10.2.1), so turn it off for now
-    # CFLAGS += --param inline-unit-growth=15 --param max-inline-insns-auto=20
+    CFLAGS += --param inline-unit-growth=15 --param max-inline-insns-auto=20
   endif
 
   ifdef CFLAGS_BOARD