Revert "aarch64 raspberry pi config"

This reverts commit eefddf3a357f5d180e46912fb4063998f333b41b.

Linux 4.15

Linux 4.15-rc9

Linux 4.15-rc8

Linux 4.15-rc7

Linux 4.15-rc6

Linux 4.15-rc5

Linux 4.15-rc4

Linux 4.15-rc3

Linux 4.15-rc2