add 'jsimd_pick_color' function in 'aarch32'
- The 'jsimd_pick_color' function is only used on specific TV devices.
- New 'aarch32' was added since v2.1.1, the 'arm' was subdivided into 'aarch32' and 'aarch64'.
Auto-detecting NEON intrinsics determines the files to be compiled.
https://github.com/libjpeg-turbo/libjpeg-turbo/commit/
33859880e9eb33fa718bbe2bc7043a0a644cba9b
The function only existed in 'arm', we add 'jsimd_color_picker' in 'aarch32'.
Change-Id: Ieddf8f18205dfaffeb6090a7008503f0648a264f