Change RegsTmpl to RegsImpl.

Also clang-format modified Regs.cpp slightly.

Bug: 23762183

Test: Built and ran unit tests.
Change-Id: I1c7c1b01974ee3f35059c42b8e2aef24d46c81a7
diff --git a/libunwindstack/tests/RegsFake.h b/libunwindstack/tests/RegsFake.h
index dbc06a4..ff030c8 100644
--- a/libunwindstack/tests/RegsFake.h
+++ b/libunwindstack/tests/RegsFake.h
@@ -22,10 +22,10 @@
 #include "Regs.h"
 
 template <typename TypeParam>
-class RegsFake : public RegsTmpl<TypeParam> {
+class RegsFake : public RegsImpl<TypeParam> {
  public:
   RegsFake(uint16_t total_regs, uint16_t sp_reg)
-      : RegsTmpl<TypeParam>(total_regs, sp_reg, Regs::Location(Regs::LOCATION_UNKNOWN, 0)) {}
+      : RegsImpl<TypeParam>(total_regs, sp_reg, Regs::Location(Regs::LOCATION_UNKNOWN, 0)) {}
   virtual ~RegsFake() = default;
 
   uint64_t GetRelPc(Elf*, const MapInfo*) override { return 0; }