add H8300 to newlib supported architectures

target/config/Config.in.libc

@@ -61,6 +61,7 @@ config ADK_TARGET_LIB_NEWLIB
 		ADK_TARGET_ARCH_BFIN || \
 		ADK_TARGET_ARCH_CRIS || \
 		ADK_TARGET_ARCH_FRV || \
+		ADK_TARGET_ARCH_H8300 || \
 		ADK_TARGET_ARCH_LM32 || \
 		ADK_TARGET_ARCH_MICROBLAZE || \
 		ADK_TARGET_ARCH_MIPS || \