misc: misc_minor_alloc to use ida for all dynamic/misc dynamic minors

In the Linux kernel, the following vulnerability has been resolved:

misc: misc_minor_alloc to use ida for all dynamic/misc dynamic minors

misc_minor_alloc was allocating id using ida for minor only in case of

MISC_DYNAMIC_MINOR but misc_minor_free was always freeing ids

using ida_free causing a mismatch and following warn:

> > WARNING: CPU: 0 PID: 159 at lib/idr.c:525 ida_free+0x3e0/0x41f

> > ida_free called for id=127 which is not allocated.

> > <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

...

> > [<60941eb4>] ida_free+0x3e0/0x41f

> > [<605ac993>] misc_minor_free+0x3e/0xbc

> > [<605acb82>] misc_deregister+0x171/0x1b3

misc_minor_alloc is changed to allocate id from ida for all minors

falling in the range of dynamic/ misc dynamic minors