drm/i915: Fix trailing semicolon

Remove the trailing semicolon, as correctly warned by checkpatch:

	-:1189: WARNING:TRAILING_SEMICOLON: macros should not use a trailing semicolon
	#1189: FILE: drivers/gpu/drm/i915/intel_device_info.c:119:
	+#define PRINT_FLAG(name) drm_printf(p, "%s: %s\n", #name, yesno(info->display.name));

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220126093951.1470898-3-lucas.demarchi@intel.com