ASoC: topology: Rename soc_tplg_init_kcontrol() function

ASoC: topology: Rename soc_tplg_init_kcontrol() function

Other functions used for callbacks are named after function they call,
however function calling control_load seems to be an exception. Rename
it to soc_tplg_control_load().

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220401120200.4047867-7-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>