SAMD21: set the filesystem type to LFS1. SAMD51: the type is already set to LFS2, support is now dropped for LFS1. It has not been used and dropping it saves 10 k of flash. Signed-off-by: robert-hh <robert@hammelrath.com>
- mpconfigboard.h: flash and USART config - mpconfigboard.mk: enable LFS1 - pins.c: define pins and LEDs - pins.h: define structs and consts
The rename matches other ports, e.g. stm32, and gives consistency with mpconfigboard.h.
