ProjectExplorer: Add support for new R32C architecture

This commit adds new ProjectExplorer::Abi::R32CArchitecture
entry for the Renesas R32C architecture:

 * https://www.renesas.com/us/en/products/microcontrollers-microprocessors/m16c.html

Change-Id: I869dd07783355b01522ca9eb87b73a8e55bf3746
Reviewed-by: hjk <hjk@qt.io>

src/plugins/projectexplorer/abi.cpp

@@ -773,6 +773,8 @@ QString Abi::toString(const Architecture &a)
         return QLatin1String("m32c");
     case M16CArchitecture:
         return QLatin1String("m16c");
+    case R32CArchitecture:
+        return QLatin1String("r32c");
     case RiscVArchitecture:
         return QLatin1String("riscv");
     case UnknownArchitecture:
@@ -937,6 +939,8 @@ Abi::Architecture Abi::architectureFromString(const QStringRef &a)
         return M32CArchitecture;
     if (a == "m16c")
         return M16CArchitecture;
+    if (a == "r32c")
+        return R32CArchitecture;
     if (a == "riscv")
         return RiscVArchitecture;
     else if (a == "xtensa")

src/plugins/projectexplorer/abi.h

@@ -72,6 +72,7 @@ public:
         M68KArchitecture,
         M32CArchitecture,
         M16CArchitecture,
+        R32CArchitecture,
         RiscVArchitecture,
         UnknownArchitecture
     };