Fixes dtbs_check warnings like:

'3-3-v-regulator' does not match any of the regexes: '.*-names$'

Cc: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reported-by: Nkernel test robot <lkp@intel.com>
Signed-off-by: NDinh Nguyen <dinguyen@kernel.org>
---
v2: fix compile error