purism/librem13v2: Update microcode length in CBFS

Microcode blob has been updated, so update the length to match

Change-Id: I46ac10e5c6cd6492c98a7034649797f301101abc
Signed-off-by: Youness Alaoui <youness.alaoui@puri.sm>
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/22044
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
1 file changed