Raise max-allocs-per-node.

- Allows the compiler to better optimize things.
diff --git a/contiki-cpc/Makefile.common b/contiki-cpc/Makefile.common
index 9aeba3c..4411bea 100644
--- a/contiki-cpc/Makefile.common
+++ b/contiki-cpc/Makefile.common
@@ -18,7 +18,7 @@
 	-I $(CONTIKI)/ppp \
 	-I $(CONTIKI)/uip \
 	-mz80 -D__CPC__ -DCLK_TCK=16384 \
-	-DCTK_CONIO --funsigned-char \
+	-DCTK_CONIO --funsigned-char --max-allocs-per-node 20000 \
 	--no-std-crt0 --opt-code-size --allow-unsafe-read
 
 CLFLAGS=