qcom_display: add TARGET_PROVIDES_LIBLIGHT

Change-Id: Ifa4984a3dc4b938fb89d6c65c8cda931d643f3c6
Don't build when variant is requested.

Change-Id: I32adc414e5e68af6c409115583984a09d65b6587
utilize TARGET_USES_QCOM_BSP

* mako doesnt want this

Change-Id: If2a15fb629f5559fd74a6e52ada7d1a84e38155c