Disable inline_asm_direct_symbol_refs if lto was requested.

This fixes link time optimizations with gcc without disabling inline asm.

Fixes ticket #2941.
Map --enable-lto to -ipo when compiling with icc.
Merge remote-tracking branch 'cehoyos/master'

* cehoyos/master:
  Map --enable-lto to -ipo when compiling with icc.
  Disable inline_asm_direct_symbol_refs if lto was requested.

Merged-by: Michael Niedermayer <michaelni@gmx.at>
MAINTANERS: update snow/ffv1/nut entries as these are no longer in a single file

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avutil/pca: Use av_malloc_array()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
swscale/utils: use FF_ALLOC(Z)_ARRAY_OR_GOTO() and av_malloc(z)_array()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Merge https://github.com/FFmpeg/FFmpeg