crypto: crc32c - add missing crypto module alias

crypto: crc32c - add missing crypto module alias

The backport of commit 5d26a105b5a7 ("crypto: prefix module autoloading
with "crypto-"") lost the MODULE_ALIAS_CRYPTO() annotation of crc32c.c.
Add it to fix the reported filesystem related regressions.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Reported-by: Philip Müller <philm@manjaro.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Rob McCathie <rob@manjaro.org>
Cc: Luis Henriques <luis.henriques@canonical.com>
Cc: Kamal Mostafa <kamal@canonical.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>