digikam: Fix architecture flags. Pre not Post.
digikam: Fix architecture flags. Pre not Post.

nielx/haikuports,haikuports/haikuports,moochris/haikuports,nielx/haikuports,Begasus/haikuports,Begasus/haikuports,moochris/haikuports,Begasus/haikuports,haikuports/haikuports,Begasus/haikuports,haikuports/haikuports,moochris/haikuports,haikuports/haikuports,haikuports/haikuports,nielx/haikuports,Begasus/haikuports