Use "powerpc64{le}" instead of "ppc64{le}"

A mix of "powerpc64" and "ppc64" existed, causing build failures.

Standardise on "powerpc64" and "powerpc64le", which are commonly used in
target triples, such as those generated by config.guess.

Signed-off-by: Russell Currey <[email protected]>

Author: ruscur

utils/swift_build_support/swift_build_support/targets.py

@@ -116,8 +116,8 @@ class StdlibDeploymentTarget(object):
         "armv6",
         "armv7",
         "aarch64",
-        "ppc64",
-        "ppc64le",
+        "powerpc64",
+        "powerpc64le",
         "s390x"])
 
     FreeBSD = Platform("freebsd", archs=["x86_64"])
@@ -163,9 +163,9 @@ def host_target():
             elif machine == 'aarch64':
                 return StdlibDeploymentTarget.Linux.aarch64
             elif machine == 'ppc64':
-                return StdlibDeploymentTarget.Linux.ppc64
+                return StdlibDeploymentTarget.Linux.powerpc64
             elif machine == 'ppc64le':
-                return StdlibDeploymentTarget.Linux.ppc64le
+                return StdlibDeploymentTarget.Linux.powerpc64le
             elif machine == 's390x':
                 return StdlibDeploymentTarget.Linux.s390x