[aur-general] AVR toolchain update (patches for PKGBUIDs)

[Gerardo Exequiel Pozzi]

Hello

All builds tested on i686 and x86_64 machine.

* binutils-avr
- https://gist.github.com/21dfd395add8270875fb
- updated to 2.20.1
- removed uneeded the "as-needed" patch :P
- rename info pages to avr-* to avoid conflicts with binutils
- remove redundants "rm".
- removed .install was needed before.
- use build() and package()

* gcc-avr
- https://gist.github.com/b6e51e2adb5031b7407b
- updated to 4.4.3
- removed flex as makedepends that is part of base-devel
- use build() and package()

* avr-libc
- https://gist.github.com/6ef738c9bc0d2901eadb
- updated to 1.6.8
- converted to arch=any since this package does is not arch dependent of 
installed enviroment.
- use build() and package()

* avrdude
- https://gist.github.com/2e6895ef91dd72af9d93
- updated to 5.10
- removed bison and flex as depends since these packages are part of 
base-devel
- use build() and package()


Good luck!

-- 
Gerardo Exequiel Pozzi ( djgera )
http://www.djgera.com.ar
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