mfd: intel_soc_pmic_*: Consistently use filename as driver name

mfd: intel_soc_pmic_*: Consistently use filename as driver name

Currently the intel_soc_pmic_bxtwc, intel_soc_pmic_chtwc and
intel_soc_pmic_crc PMIC drivers use more or less free form strings
for their driver name.

Where as intel_soc_pmic_chtdc_ti and intel_soc_pmic_mrfld use the driver's
filename as driver name.

Update the 3 others to also use the driver's filename to make the naming
consistent.

Suggested-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20241104150655.41402-2-hdegoede@redhat.com
Signed-off-by: Lee Jones <lee@kernel.org>