ASoC: Intel: avs: replace strcmp with sysfs_streq

ASoC: Intel: avs: replace strcmp with sysfs_streq

allmodconfig failes to build with GCC 16 with the following build error

sound/soc/intel/avs/path.c:137:38: error: ‘strcmp’ reading 1 or more bytes from a region of size 0 [-Werror=stringop-overread]
  137 |         return id->id == id2->id && !strcmp(id->tplg_name, id2->tplg_name);
      |                                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  ‘avs_condpaths_walk’: events 1-3
  137 |         return id->id == id2->id && !strcmp(id->tplg_name, id2->tplg_name);
      |                ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                                  |   |
      |                                  |   (3) warning happens here
      |                                  (1) when the condition is evaluated to true
......
  155 |         if (id->id != path->template->owner->id ||
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                                                 |
      |                                                 (2) when the condition is evaluated to false
  156 |             strcmp(id->tplg_name, path->template->owner->owner->name))
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from sound/soc/intel/avs/path.h:14,
                 from sound/soc/intel/avs/path.c:15:
sound/soc/intel/avs/topology.h: In function ‘avs_condpaths_walk’:
sound/soc/intel/avs/topology.h:152:13: note: at offset 4 into source object ‘id’ of size 4
  152 |         u32 id;
      |             ^~

Using the sysfs_streq as an alternative to strcmp helps getting around
this build failure.
Please also refer
https://docs.kernel.org/core-api/kernel-api.html#c.__sysfs_match_string

Signed-off-by: Brahmajit Das <listout@listout.xyz>
Link: https://patch.msgid.link/20251221185531.6453-1-listout@listout.xyz
Signed-off-by: Mark Brown <broonie@kernel.org>