libuv: Make stream read buffer size configurable

Signed-off-by: Huang Qi <huangqi3@xiaomi.com>

Author: no1wudi

system/libuv/Kconfig

@@ -24,6 +24,10 @@ config LIBUV_THREADPOOL_PRIORITY
 	int "libuv default thread pool priority"
 	default 100
 
+config LIBUV_STREAM_READ_BUF_SIZE
+	int "libuv stream read buffer size"
+	default 4096
+
 config LIBUV_BACKEND_EPOLL
 	bool "Using epoll backend in libuv"
 	default y

system/libuv/Makefile

@@ -53,6 +53,7 @@ CFLAGS += -DDEF_THREADPOOL_STACKSIZE=CONFIG_LIBUV_THREAD_STACKSIZE
 CFLAGS += -DDEF_THREADPOOL_PRIORITY=CONFIG_LIBUV_THREADPOOL_PRIORITY
 CFLAGS += -DMAX_EPOLL_EVENTS=CONFIG_LIBUV_MAX_EPOLL_EVENTS
 CFLAGS += -DPREP_EVENT_SIZE=CONFIG_LIBUV_PREP_EVENT_SIZE
+CFLAGS += -DDEF_STREAM_READ_BUF_SIZE=CONFIG_LIBUV_STREAM_READ_BUF_SIZE
 
 ifeq ($(shell expr "$(GCCVER)" \>= 12), 1)
   CFLAGS += -Wno-dangling-pointer