Refactor TARGET_USES_QCOM_BSP flag

Too many false positives on this flag coming from the device BoardConfig.mk files

Now it's: TW_TARGET_USES_QCOM_BSP which flags TW_QCOM_BSP in the local files

Change-Id: I9fc5e493fb8721a1045d605ee2a377fcfc5edc9c
samsung/h-common: turn on TWRP flag for QCOM_BSP

Change-Id: Icfc733433891affe4dbe37d02bb0a2b3fefc8607