regulator: mt6370: Fix spelling mistake in mt6370_regualtor_register

The function name mt6370_regualtor_register contains a spelling mistake,
fix it.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://patch.msgid.link/20250724114832.146718-1-colin.i.king@gmail.com


Signed-off-by: Mark Brown <broonie@kernel.org>