cris: use "int" for ssize_t to match size_t

On cris-linux-gcc, __SIZE_TYPE__ expands to "unsigned int", as
gcc-4.6.3-nolibc/cris-linux/lib/gcc/cris-linux/4.6.3/plugin/include/config/cris/linux.h
has

#define SIZE_TYPE "unsigned int"

Hence __kernel_size_t is also "unsigned int". But __kernel_ssize_t is
"long", which has a different base type, causing compiler warnings like:

fs/quota/quota_tree.c:372:4: warning: format '%zd' expects argument of type 'signed size_t', but argument 4 has type 'ssize_t' [-Wformat]

To fix this, __kernel_ssize_t should be changed to "int". Hence cris can
just use the generic 32-bit versions from include/asm-generic/posix_types.h
for all size-related types.

Signed-off-by: Geert Uytterhoeven <[e-mail]>
Cc: Mikael Starvik <[e-mail]>
Acked-by: Jesper Nilsson <[e-mail]>
Cc: Hans-Peter Nilsson <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

arch/cris/include/uapi/asm/posix_types.h

···
 typedef unsigned short	__kernel_gid_t;
 #define __kernel_uid_t __kernel_uid_t
 
-typedef __SIZE_TYPE__	__kernel_size_t;
-typedef long		__kernel_ssize_t;
-typedef int		__kernel_ptrdiff_t;
-#define __kernel_size_t __kernel_size_t
-
 typedef unsigned short	__kernel_old_dev_t;
 #define __kernel_old_dev_t __kernel_old_dev_t