treewide: use __printf not __attribute__((format(printf,...)))

Standardize the style for compiler based printf format verification.
Standardized the location of __printf too.

Done via script and a little typing.

$ grep -rPl --include=*.[ch] -w "__attribute__" * | \
  grep -vP "^(tools|scripts|include/linux/compiler-gcc.h)" | \
  xargs perl -n -i -e 'local $/; while (<>) { s/\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf\s*,\s*(.+)\s*,\s*(.+)\s*\)\s*\)\s*\)/__printf($1, $2)/g ; print; }'

[akpm@linux-foundation.org: revert arch bits]
Signed-off-by: Joe Perches <joe@perches.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index c2478a3..8944ebe 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -130,8 +130,8 @@
 void crash_save_cpu(struct pt_regs *regs, int cpu);
 void crash_save_vmcoreinfo(void);
 void arch_crash_save_vmcoreinfo(void);
-void vmcoreinfo_append_str(const char *fmt, ...)
-	__attribute__ ((format (printf, 1, 2)));
+__printf(1, 2)
+void vmcoreinfo_append_str(const char *fmt, ...);
 unsigned long paddr_vmcoreinfo_note(void);
 
 #define VMCOREINFO_OSRELEASE(value) \