ANDROID: preserve CRC for struct tcp_sock

In commit fe7a7b89 ("tcp: add TCP_INFO status for failed client
TFO"), 2 unused bits in struct tcp_sock were renamed and used.  This
does not change the binary abi, but the checking tools do notice this,
so mark it as such so that the CRC generation remains the same.

Fixes: fe7a7b89 ("tcp: add TCP_INFO status for failed client TFO")
Change-Id: I160605fb220d393c77ed4972957cbf823980694c
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>