Change deps on 'mpich' to 'mpi'

lib/spack/spack/packages/callpath.py

@@ -5,7 +5,7 @@ class Callpath(Package):
     url      = "http://github.com/tgamblin/callpath-0.2.tar.gz"
 
     depends_on("dyninst")
-    depends_on("mpich")
+    depends_on("mpi")
 
     def install(self, spec, prefix):
         configure("--prefix=%s" % prefix)

lib/spack/spack/packages/mpileaks.py

@@ -4,7 +4,7 @@ class Mpileaks(Package):
     homepage = "http://www.llnl.gov"
     url      = "http://www.llnl.gov/mpileaks-1.0.tar.gz"
 
-    depends_on("mpich")
+    depends_on("mpi")
     depends_on("callpath")
 
     def install(self, spec, prefix):