kasan: split out print_report from __kasan_report

kasan: split out print_report from __kasan_report

Split out the part of __kasan_report() that prints things into
print_report().  One of the subsequent patches makes another error handler
use print_report() as well.

Includes lower-level changes:

 - Allow addr_has_metadata() accepting a tagged address.

 - Drop the const qualifier from the fields of kasan_access_info to
   avoid excessive type casts.

 - Change the type of the address argument of __kasan_report() and
   end_report() to void * to reduce the number of type casts.

Link: https://lkml.kernel.org/r/9be3ed99dd24b9c4e1c4a848b69a0c6ecefd845e.1646237226.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Marco Elver <elver@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>