resume: write offset in /sys/power/resume_offset

Doing this the kernel will hibernate and resume successfully from a swap file.
Stop writing offset to /sys/power/resume, as this is not a parameter
the kernel takes from this input. (Change added by Sven Mueller)

function                                             old     new   delta
resume_main                                          522     561     +39
.rodata                                           103175  103182      +7
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 46/0)               Total: 46 bytes

Signed-off-by: Jordi Pujol Palomer <jordipujolp@gmail.com>
Signed-off-by: Sven Mueller <sven.mueller72+busybox@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
1 file changed