p1: stage1 init: fix sdcard mounts

fstab.p1[x] link is required on recovery mode
for p1 latin variant (p1ln)

Signed-off-by: Humberto Borba <humberos@gmail.com>
Change-Id: I0dbc1f03de61df203f6783e10e90e38a88babb2b
HumberOS-v1.44