staging: ccree: resolve possible macro issue in cc_hal.h

Wrapping "offset" in macro definition to resolve checkpatch issue, ie:
CHECK: Macro argument 'offset' may be better as '(offset)' to avoid
precedence issues

Signed-off-by: Matthew Giassa <matthew@giassa.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>