ANDROID: GKI: enable CONFIG_TCP_CONG_BBR

Enable support for BBR (Bottleneck Bandwidth and RTT) TCP congestion
control algorithm, which maximizes network utilization under certain
scenarios. Note this still maintains CUBIC as the default algorithm.

Bug: 362198193
Change-Id: I2885893e565f91d14cb2c139d975e4abfee80daf
Signed-off-by: wuwei1 <11150500@vivo.corp-partner.google.com>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
(cherry picked from commit ee7395c4cb9b2e56e8f2dae5ac4a9f9cb9d78192)
(cherry picked from commit eadaba3bbc28dff77f64d21aec830b72f4e235de)

arch/arm64/configs/gki_defconfig

@@ -150,6 +150,11 @@ CONFIG_NET_IPVTI=y
 CONFIG_INET_ESP=y
 CONFIG_INET_UDP_DIAG=y
 CONFIG_INET_DIAG_DESTROY=y
+CONFIG_TCP_CONG_ADVANCED=y
+# CONFIG_TCP_CONG_BIC is not set
+# CONFIG_TCP_CONG_WESTWOOD is not set
+# CONFIG_TCP_CONG_HTCP is not set
+CONFIG_TCP_CONG_BBR=m
 CONFIG_IPV6_ROUTER_PREF=y
 CONFIG_IPV6_ROUTE_INFO=y
 CONFIG_IPV6_OPTIMISTIC_DAD=y

arch/x86/configs/gki_defconfig

@@ -148,6 +148,11 @@ CONFIG_NET_IPVTI=y
 CONFIG_INET_ESP=y
 CONFIG_INET_UDP_DIAG=y
 CONFIG_INET_DIAG_DESTROY=y
+CONFIG_TCP_CONG_ADVANCED=y
+# CONFIG_TCP_CONG_BIC is not set
+# CONFIG_TCP_CONG_WESTWOOD is not set
+# CONFIG_TCP_CONG_HTCP is not set
+CONFIG_TCP_CONG_BBR=m
 CONFIG_IPV6_ROUTER_PREF=y
 CONFIG_IPV6_ROUTE_INFO=y
 CONFIG_IPV6_OPTIMISTIC_DAD=y

bazel/modules_private.bzl

@@ -79,6 +79,7 @@ _COMMON_GKI_MODULES_LIST = [
     "net/ieee802154/6lowpan/ieee802154_6lowpan.ko",
     "net/ieee802154/ieee802154.ko",
     "net/ieee802154/ieee802154_socket.ko",
+    "net/ipv4/tcp_bbr.ko",
     "net/l2tp/l2tp_core.ko",
     "net/l2tp/l2tp_ppp.ko",
     "net/mac80211/mac80211.ko",