libaom v3.8.2 release candidate 1

[Wan-Teh Chang]

Hi everyone,

libaom v3.8.2 release candidate 1 is available. The release tag is
v3.8.2-rc1. Your testing will be greatly appreciated.

This release includes several bug fixes. This release is ABI
compatible with the last release. See
https://aomedia.googlesource.com/aom/+log/v3.8.1..v3.8.2-rc1 for all the
commits in this release.

- Bug Fixes
* aomedia:3523: SIGFPE in av1_twopass_postencode_update()
pass2_strategy.c:4261.
* aomedia:3535, b/317646516: Over reads in aom_convolve_copy_neon().
* aomedia:3543: invalid feature modifier when compiling
aom_dsp/arm/aom_convolve8_neon_i8mm.c on Debian 10 with arm64
architecture.
* aomedia:3545: Failed to parse configurations due to inconsistent
elements between two arrays "av1_ctrl_args" and "av1_arg_ctrl_map"
in aomenc.c.
* oss-fuzz:66474, b/319140742: Integer-overflow in search_wiener.
* Zero initialize an array in cdef search.

Thanks,
Wan-Teh Chang