[media] media-entity.h fix documentation for several parameters

Several parameters added by the media_ent_enum patches
were declared with wrong argument names:
	include/media/media-device.h:333: warning: No description found for parameter 'entity_internal_idx_max'
	include/media/media-device.h:354: warning: No description found for parameter 'ent_enum'
	include/media/media-device.h:354: warning: Excess function parameter 'e' description in 'media_entity_enum_init'
	include/media/media-device.h:333: warning: No description found for parameter 'entity_internal_idx_max'
	include/media/media-device.h:354: warning: No description found for parameter 'ent_enum'
	include/media/media-device.h:354: warning: Excess function parameter 'e' description in 'media_entity_enum_init'
	include/media/media-entity.h:397: warning: No description found for parameter 'ent_enum'
	include/media/media-entity.h:397: warning: Excess function parameter 'e' description in 'media_entity_enum_zero'
	include/media/media-entity.h:409: warning: No description found for parameter 'ent_enum'
	include/media/media-entity.h:409: warning: Excess function parameter 'e' description in 'media_entity_enum_set'
	include/media/media-entity.h:424: warning: No description found for parameter 'ent_enum'
	include/media/media-entity.h:424: warning: Excess function parameter 'e' description in 'media_entity_enum_clear'
	include/media/media-entity.h:441: warning: No description found for parameter 'ent_enum'
	include/media/media-entity.h:441: warning: Excess function parameter 'e' description in 'media_entity_enum_test'
	include/media/media-entity.h:458: warning: No description found for parameter 'ent_enum'
	include/media/media-entity.h:458: warning: Excess function parameter 'e' description in 'media_entity_enum_test_and_set'
	include/media/media-entity.h:474: warning: No description found for parameter 'ent_enum'
	include/media/media-entity.h:474: warning: Excess function parameter 'e' description in 'media_entity_enum_empty'
	include/media/media-entity.h:474: warning: Excess function parameter 'entity' description in 'media_entity_enum_empty'
	include/media/media-entity.h:489: warning: No description found for parameter 'ent_enum1'
	include/media/media-entity.h:489: warning: No description found for parameter 'ent_enum2'
	include/media/media-entity.h:489: warning: Excess function parameter 'e' description in 'media_entity_enum_intersects'
	include/media/media-entity.h:489: warning: Excess function parameter 'f' description in 'media_entity_enum_intersects'

Fix them.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>