arm: dsputil: Drop restrict keyword from add_pixels_clamped_armv6 prototype

The function is assigned to a function pointer that does not have the
restrict keyword for that parameter.

This fixes compilation for MSVC builds that don't recognize "restrict",
broken since ed9625eb62.
configure: Group and sort function/struct/type checks

Group checks into logical groups and sort alphabetically within those groups
unless checks have close coupling. Keep closely coupled checks together.
configure: Split some logical blocks off from CONFIG_LIST
configure: Split some logical blocks off from HAVE_LIST
codec_desc: K&R formatting cosmetics
codec_desc: add missing .long_name
codec_desc: group image codecs together
Merge commit '36b822b8be7f9ecd6f9d87acaa786b128a873cd9'

* commit '36b822b8be7f9ecd6f9d87acaa786b128a873cd9':
  arm: dsputil: Drop restrict keyword from add_pixels_clamped_armv6 prototype

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '07ea8a7e943ea6a7bdcd736e2fc3ed357dc15c57'

* commit '07ea8a7e943ea6a7bdcd736e2fc3ed357dc15c57':
  configure: Group and sort function/struct/type checks

Conflicts:
	configure

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'd0adf55c05beaf80420747dded2d1884bff377ec'

* commit 'd0adf55c05beaf80420747dded2d1884bff377ec':
  configure: Split some logical blocks off from CONFIG_LIST

Conflicts:
	configure

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '7a650caf6436ddfe417bdcb5ce520c96c779af7b'

* commit '7a650caf6436ddfe417bdcb5ce520c96c779af7b':
  configure: Split some logical blocks off from HAVE_LIST

Conflicts:
	configure

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '999d31d354f1f0616a09691913659ac0abdcc899'

* commit '999d31d354f1f0616a09691913659ac0abdcc899':
  codec_desc: K&R formatting cosmetics

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'd42ea06798b83d87397449ec6aad40cb5ea46e43'

* commit 'd42ea06798b83d87397449ec6aad40cb5ea46e43':
  codec_desc: add missing .long_name

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge remote-tracking branch 'qatar/master'

* qatar/master:
  codec_desc: group image codecs together

Conflicts:
	libavcodec/codec_desc.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
configure: remove unused identifer that was added by cleanups

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
configure: factorize mips arch extensions out

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avfilter: make avfilter_graph_get_filter use const string name

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>