It does not affect Raspberry Pi devices to my knowledge. Please provide source for your claims!

The CPUs in Raspberry Pi 1-3 are not affected.

  ARM11, Cortex-A7, Cortex-A5

Raspberry Pi 2 v1 use a Broadcom BCM2836 SoC with a 900 MHz 32-bit quad-core ARM Cortex-A7 processor.

Raspberry Pi 3 (and Pi 2 v1.2) uses a Broadcom BCM2837 SoC with a 1.2 GHz 64-bit quad-core ARM Cortex-A53 processor.

According to ARM website https://developer.arm.com/support/security-update it especially says

  "*Only affected cores are listed, all other Arm cores are NOT affected.*" 

and it lists only

  "Cortex-R7, Cortex-R8, Cortex-A8, Cortex-A9, Cortex-A15, 
  Cortex-A17, Cortex-A57, Cortex-A72, Cortex-A73, Cortex-A75"