devices.config being dropped from linux-next partially broke expressatt as the mainline kernels do not enable peripherals that are needed by expressatt. Let's instead add it to kconfig-generic.toml and use postmarketOS's generic kernels instead of Alpine's. Signed-off-by: Rudraksha Gupta <guptarud@gmail.com> Part-of: <https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/9463>