[spec] Add spec helpers subdirs to #spec_files.
[spec] Add spec helpers subdirs to #spec_files.

Signed-off-by: Eloy Durán <824a8b3b53f622742eb0570ebe0b80cc73431e09@gmail.com>

beni55/RubyMotion,incbee/RubyMotion,hboon/RubyMotion,jjaffeux/RubyMotion,katsuyoshi/RubyMotion,incbee/RubyMotion,katsuyoshi/RubyMotion,jjaffeux/RubyMotion,katsuyoshi/RubyMotion,hboon/RubyMotion,incbee/RubyMotion,katsuyoshi/RubyMotion,beni55/RubyMotion,hboon/RubyMotion,HipByte/RubyMotion,HipByte/RubyMotion,beni55/RubyMotion,incbee/RubyMotion,HipByte/RubyMotion,jjaffeux/RubyMotion,beni55/RubyMotion,jjaffeux/RubyMotion