1b89fd add ARM to ghc_arches_with_ghci for ghc-7.4.2 ghci support

Authored and Committed by petersen 6 years ago
    add ARM to ghc_arches_with_ghci for ghc-7.4.2 ghci support
    
    This change must not be backported to F18 before ghc-7.4.2.
    
        
file modified
+5 -1