ksmbd: update to 3.3.8

Major changes are:
  clean-up codes using checkpatch --strict option.
  fix several warning and build failure from linux-next.
  change the minimum supported kernel version to v5.4.
  use xarray for tree connect list.
  fix reviews from lkml.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

kernel/ksmbd/Makefile

@@ -1,12 +1,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=ksmbd
-PKG_VERSION:=3.3.7
+PKG_VERSION:=3.3.8
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://codeload.github.com/cifsd-team/cifsd/tar.gz/$(PKG_VERSION)?
-PKG_HASH:=d92706e2dc00bd612698be2c39759ea6170a869e657bae4a80cf6424a333babe
+PKG_HASH:=8c0d1beaa549053a476287972105f3cad53e9841983c54c2490f52a88e1a4828
 
 PKG_MAINTAINER:=Andy Walsh <andy.walsh44+github@gmail.com>
 PKG_LICENSE:=GPL-2.0-or-later