asm: HADDD optimization for XOP

--HG--
extra : rebase_source : 3f32aac2613669f4055e123fcce627095c1f130d
asm-primitives: Enable missing XOP primitives in HIGH_BIT_DEPTH

--HG--
extra : rebase_source : 2c1adfd9d0edaff89cfa21383f907c2771621668
TComTrQuant: comparing >=0 of unsigned variable is always true
TComTrQuant: nits
cip: add is*AvailableCIP()

simplify no CIP case.
cmake: allow icpc to use vectorization if it likes
xp: fix build with XP headers
ratecontrol: Fix initial I-slice QP for 10-bit CRF mode.