crypto: run initcalls for generic implementations earlier

Use subsys_initcall for registration of all templates and generic
algorithm implementations, rather than module_init.  Then change
cryptomgr to use arch_initcall, to place it before the subsys_initcalls.

This is needed so that when both a generic and optimized implementation
of an algorithm are built into the kernel (not loadable modules), the
generic implementation is registered before the optimized one.
Otherwise, the self-tests for the optimized implementation are unable to
allocate the generic implementation for the new comparison fuzz tests.

Note that on arm, a side effect of this change is that self-tests for
generic implementations may run before the unaligned access handler has
been installed.  So, unaligned accesses will crash the kernel.  This is
arguably a good thing as it makes it easier to detect that type of bug.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

crypto/crct10dif_generic.c

@@ -112,7 +112,7 @@ static void __exit crct10dif_mod_fini(void)
 	crypto_unregister_shash(&alg);
 }
 
-module_init(crct10dif_mod_init);
+subsys_initcall(crct10dif_mod_init);
 module_exit(crct10dif_mod_fini);
 
 MODULE_AUTHOR("Tim Chen <tim.c.chen@linux.intel.com>");