jfltevzw: cleanup build

Change-Id: I04d73a72177bc8b3a1251af49e29939ba5b8926a
migrate samsung/msm8960-common files into samsung/jf-common for future expansion

Change-Id: I7e460d8cfe9ad37fed3d047c6dfdeb2a24f57aa4
samsung/jf: commonize build-install.sh

Change-Id: Ife39c21fe8402f7da1a8360da77ba51535935bdf
samsung/jf: commonize build-safestrap.sh

Change-Id: I2baa3dc56ef3c119908dd4c1e2362902af4617ed
samsung/jflteatt-active: re-setup device support

Change-Id: I23bfb155482ef2a6b66baa5861bc767602d4c087
samsung/jflteatt: re-setup device support

Change-Id: I4b10a9a5ef6b4d1298df609b0fd69ffa520cb453
samsung/jfltevzw: re-setup device support

Change-Id: I479f414af4dc86956f8076174384b10983d2708c