exfat: fix free block counting when the bitmap is smaller than one sector
treee9dff17e88803874089298f994611b0a5623a2b7
-rw-r--r-- 16837 HelenOS.config
-rw-r--r-- 3747 Makefile
drwxr-xr-x - abi
drwxr-xr-x - boot
drwxr-xr-x - contrib
drwxr-xr-x - defaults
drwxr-xr-x - kernel
drwxr-xr-x - release
drwxr-xr-x - tools
drwxr-xr-x - uspace
-rw-r--r-- 1940 version