atomisp: use min_t and max_t instead of direct casting

atomisp: use min_t and max_t instead of direct casting

BZ: 24615

There are few places where max and min macros used as follows
	min(a, (<T>)b)
It could be easily changed to
	min_t(<T>, a, b)

Change-Id: I7717b16cc9cc79e1da005e10bc8853d78498efc3
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-on: http://android.intel.com:8080/36100
Reviewed-by: Shevchenko, Andriy <andriy.shevchenko@intel.com>
Reviewed-by: Cohen, David A <david.a.cohen@intel.com>
Reviewed-by: Wang, Wen W <wen.w.wang@intel.com>
Tested-by: Koski, Anttu <anttu.koski@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>