[rs6000] Remove semicolon after do {} while (0) in SUBTARGET_OVERRIDE_OPTIONS

[rs6000] Remove semicolon after do {} while (0) in SUBTARGET_OVERRIDE_OPTIONS

2017-11-07  Tom de Vries  <tom@codesourcery.com>

	* config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): Remove semicolon
	after "do {} while (0)".
	* config/rs6000/aix51.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
	* config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
	* config/rs6000/aix53.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
	* config/rs6000/aix61.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
	* config/rs6000/aix71.h (SUBTARGET_OVERRIDE_OPTIONS): Same.

From-SVN: r254492