Duplicates the existing blackpill_f411ce board definition for the
blackpill_f401ce board (WeAct Blackpill V3.0), which has identical specs
except for 84MHz clock (instead of 100Mhz) and 96K SRAM (instead of
128K).
Signed-off-by: Kalyan Sriram <coder.kalyan@gmail.com>
Kalyan Sriram