kunit: make KUNIT_EXPECT_EQ() use KUNIT_EXPECT_EQ_MSG(), etc.

There's quite a few macros in play for KUnit assertions.

The current macro chain looks like:
  KUNIT_EXPECT_EQ => KUNIT_BINARY_EQ_ASSERTION => KUNIT_BINARY_EQ_MSG_ASSERTION
  KUNIT_EXPECT_EQ_MSG => KUNIT_BINARY_EQ_MSG_ASSERTION
  KUNIT_ASSERT_EQ => KUNIT_BINARY_EQ_ASSERTION => KUNIT_BINARY_EQ_MSG_ASSERTION
  KUNIT_ASSERT_EQ_MSG => KUNIT_BINARY_EQ_MSG_ASSERTION

After this change:
  KUNIT_EXPECT_EQ => KUNIT_EXPECT_EQ_MSG => KUNIT_BINARY_EQ_MSG_ASSERTION
  KUNIT_ASSERT_EQ => KUNIT_ASSERT_EQ_MSG => KUNIT_BINARY_EQ_MSG_ASSERTION
and we can drop the intermediate KUNIT_BINARY_EQ_ASSERTION.

This change does this for all the other macros as well.

Signed-off-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>