scripts: sd_fusing: Add force option to mkfs.ext4

scripts: sd_fusing: Add force option to mkfs.ext4

Add force ('-F') option to mkfs.ext4 to avoid unexpectted filesystem
creation failure caused by some garbage being misdetected as DOS
partition signature:

2024-08-14T08:59:40.904 [sd_fusing.py:956] Formatting /dev/sda9 as ext4
2024-08-14T08:59:40.905 [sd_fusing.py:968] mkfs.ext4 -q -L inform /dev/sda9
Found a dos partition table in /dev/sda9
Proceed anyway? (y,N)
2024-08-14T08:59:40.924 Failed to create ext4 filesystem on /dev/sda9

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Change-Id: I6e960e2f48285fe2f2a139b4342621c82172350b