[amdfftw] znver1 support.

repos/vae/packages/amdfftw/package.py

@@ -115,9 +115,11 @@ class Amdfftw(FftwBase):
         # use target variable to set appropriate -march option in AMD_ARCH.
         arch = spec.architecture
         if spec.target == 'x86_64':
-            var1='x86-64'
+            var1 = 'x86-64'
+        elif spec.target == 'zen':
+            var1 = 'znver1'
         else:
-            var1=spec.target
+            var1 = spec.target
         options.append(
 #            "AMD_ARCH={0}".format(
 #                arch.target.optimization_flags(