Xiang Xiao

nshlib: Rename CONFIG_SYSTEM_NSH_SYMTAB to CONFIG_NSH_SYMTAB

1

## Summary Follow up the patch: https://github.com/apache/incubator-nuttx-apps/pull/1350/commits/44b90f584a05c9b52ccc0f0ba6a97cc365ba1298 ## Impact Move symbol table config from apps/system/nsh to apps/nshlib ## Testing Need merge together with https://github.com/apache/incubator-nuttx/pull/7330

## Summary I have try my best to fix the style issue, so please ignore the rest style warning. ## Impact Minor, code refactor ## Testing Pass CI

Signed-off-by: anjiahao

Fix warning which complain macro not defined

3

internal/gtest-port.h:437:29: warning: "__EXCEPTIONS" is not defined, evaluates to 0 [-Wundef] internal/gtest-port.h:2132:5: warning: "_MSC_VER" is not defined, evaluates to 0 [-Wundef] Signed-off-by: litong12

Don't set GTEST_HAS_CXXABI_H_ to 1 if __NuttX__ is defined

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since NuttX(https://github.com/apache/incubator-nuttx) doesn't support cxxabi