move acknowledgment for Mark Adler to CREDITS

The place in the documentation of the Linux kernel to acknowledge
contributions is the CREDITS file.

Give Mark Adler an entry there instead of including a string in the
kernel image.

Signed-off-by: Adrian Bunk <[e-mail]>

CREDITS

···
 S: Iasi 6600
 S: Romania
 
+N: Mark Adler
+E: [e-mail]
+W: http://alumnus.caltech.edu/~madler/
+D: zlib decompression
+
 N: Monalisa Agrawal
 E: [e-mail]
 D: Basic Interphase 5575 driver with UBR and ABR support.

lib/zlib_inflate/inftrees.c

···
 
 #define MAXBITS 15
 
-const char inflate_copyright[] =
-   " inflate 1.2.3 Copyright 1995-2005 Mark Adler ";
-/*
-  If you use the zlib library in a product, an acknowledgment is welcome
-  in the documentation of your product. If for some reason you cannot
-  include such an acknowledgment, I would appreciate that you keep this
-  copyright string in the executable of your product.
- */
-
 /*
    Build a set of tables to decode the provided canonical Huffman code.
    The code lengths are lens[0..codes-1].  The result starts at *table,