Improve the declaration of tfrc_option_receive struct

[TFRC_CCIDS] Improve the declaration of tfrc_option_receive struct.

It makes tfrcor_dropped_packets_idx a plain u16. tfrcor_loss_intervals_idx was part of a bitfield together with tfrcor_seqno because it is 48 bits and we wanted to use what is left in a 64. Adding the new DROPPED PACKET field this setup changed. Thus, making tfrcor_dropped_packets_idx a 16 bits entry in a 16 bits bitfield doesn't helps us here and likely produces bad code. Now we have just a 2 bytes hole.

Index: ccid4.latest/net/dccp/ccids/lib/tfrc_ccids.h =================================--- ccid4.latest.orig/net/dccp/ccids/lib/tfrc_ccids.h +++ ccid4.latest/net/dccp/ccids/lib/tfrc_ccids.h
@@ -39,13 +39,13 @@ enum tfrc_options {
};

struct tfrc_options_received {
- u64 tfrcor_seqno:48,
- tfrcor_loss_intervals_idx:16,
- tfrcor_dropped_packets_idx:16;
- u16 tfrcor_loss_intervals_len,
- tfrcor_dropped_packets_len;
- u32 tfrcor_loss_event_rate;
- u32 tfrcor_receive_rate;

+	u64  tfrcor_seqno:48;
+	u64  tfrcor_loss_intervals_idx:16;
+	u16  tfrcor_dropped_packets_idx;
+	u16  tfrcor_loss_intervals_len;
+	u16  tfrcor_dropped_packets_len;
+	u32  tfrcor_loss_event_rate;
+	u32  tfrcor_receive_rate;

};

/* TFRC sender states */