[PATCH] update comment about gzip scratch size

fix a comment about the array size.
Signed-off-by: NOlaf Hering <olh@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

arch/ppc/boot/openfirmware/chrpmain.c

@@ -39,7 +39,7 @@ char *avail_high;
 
 #define SCRATCH_SIZE	(128 << 10)
 
-static char scratch[SCRATCH_SIZE];	/* 1MB of scratch space for gunzip */
+static char scratch[SCRATCH_SIZE];	/* 128k of scratch space for gunzip */
 
 typedef void (*kernel_start_t)(int, int, void *, unsigned int, unsigned int);