Commit b8a926be ("kunit: Introduce KUNIT_EXPECT_MEMEQ and
KUNIT_EXPECT_MEMNEQ macros") introduced a new macro to compare blocks of
memory and, if the test fails, print the result in a human friendly
format. For example, this is the output of a test failure:

 Expected res == params->expected, but
     res ==
      01  02  aa  00  00  00  03  bb  00 <00> 00  04  05
     params->expected ==
      01  02  aa  00  00  00  03  bb  00 <01> 00  04  05

Use this new macro to replace KUNIT_EXPECT_EQ + memcmp.
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>