x264-devel: updated to 20180624

20180624:
ppc: Optimize quant functions
ppc: Add support for Power9-only vec_absd
pc: Optimize sub8x8_dct_dc
ppc: AltiVec add16x16_idct_dc
ppc: Optimize add8x8_idct_dc
ppc: Add compatibility macros for vec_xxpermdi
Prefer a monotonic clock source if available
Add Sony XAVC, a flavour of AVC-Intra
Cosmetics: Fix indentation for multiline function prototypes
Cosmetics: Use consistent "inline" attribute position
x86: AVX-512 plane_copy and plane_copy_swap
4:0:0 (monochrome) encoding support
Makefile improvements
x86inc: Improve SAVE/LOAD_MM_PERMUTATION macros
x86inc: Optimize VEX instruction encoding
x86inc: Fix VEX -> EVEX instruction conversion
configure: Fix required version checks for lavf and swscale
Fix float division by zero in weightp analysis
Fix undefined behavior of left shift for CAVLC encoding
Fix integer overflow in slicetype_path_cost
cli: Fix preset help listing
ppc: Fix zigzag_interleave
Fix clang stack alignment issues
Fix missing bs_flush in AUD writing
Fix possible undefined behavior of right shift
make bs_align_10 imply bs_flush
Fix theoretically incorrect cost_mv_fpel free
configure: Fix ambiguous "$(("
Fix --qpmax default value in fullhelp

(adam)