Simplify Triple::ppc64{,le} checks with Triple::isPPC64()

While here, update some ppc64le specific check to isPPC64(), if it
applies to big-endian as well, in the hope that it will ease the support
of big-endian if people are interested in this area. The big-endian
variant is used by at least FreeBSD, Gentoo Linux, Adélie Linux, and
Void Linux.

llvm-svn: 360868
diff --git a/lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp b/lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp
index 1768b4b..a55dc41 100644
--- a/lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp
+++ b/lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp
@@ -1007,7 +1007,7 @@
       // Arm mode
       error = SetSoftwareBreakpoint(next_pc, 4);
     }
-  } else if (m_arch.IsMIPS() || m_arch.GetMachine() == llvm::Triple::ppc64le)
+  } else if (m_arch.IsMIPS() || m_arch.GetTriple().isPPC64())
     error = SetSoftwareBreakpoint(next_pc, 4);
   else {
     // No size hint is given for the next breakpoint