[PATCH] adjust ppp to zlib change

This bit is left from the zlib changes.  According to Paul, the zlib
bug is already caught in userspace pppd, but not in the kernel ppp
code.  With this patch, there is one potential hickup less in ppp.

include/linux/ppp-comp.h

@@ -182,7 +182,7 @@ struct compressor {
 #define CI_DEFLATE_DRAFT	24	/* value used in original draft RFC */
 #define CILEN_DEFLATE		4	/* length of its config option */
 
-#define DEFLATE_MIN_SIZE	8
+#define DEFLATE_MIN_SIZE	9
 #define DEFLATE_MAX_SIZE	15
 #define DEFLATE_METHOD_VAL	8
 #define DEFLATE_SIZE(x)		(((x) >> 4) + DEFLATE_MIN_SIZE)