add find7a,X9007,X9006 to OTA target

otherwise find7a / Oppo Recovery dont flash our rom

Change-Id: Ie5e53e66d74570f4b5d3502e6931b3951bf0f8fe
find7: Use both x9007 and x9076 device tree entries

Change-Id: I622534d0c7d7a1aa5d1eb1255f10e1ed3f1e192a
find7: Set screen density, unique device identifier for Find7 variants

Change-Id: I09cecc54fb2cd415c77e2d1cd75f4975f3208eab
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_device_oppo_find7 into kk4.4

Conflicts:
	BoardConfig.mk