xdma: remove separate libxdma/ directory, merge all source files under xdma/

XDMA/linux-kernel/libxdma/Makefile

-SHELL = /bin/bash
-
-topdir := $(shell cd $(src)/.. && pwd)
-
-TARGET_MODULE:=libxdma
-
-EXTRA_CFLAGS := -I$(topdir)/include
-EXTRA_CFLAGS += -D__LIBXDMA_MOD__
-
-ifneq ($(KERNELRELEASE),)
-	obj-m := $(TARGET_MODULE).o
-#	$(TARGET_MODULE)-objs := libxdma.o
-else
-	BUILDSYSTEM_DIR:=/lib/modules/$(shell uname -r)/build
-	PWD:=$(shell pwd)
-all :
-	$(MAKE) -C $(BUILDSYSTEM_DIR) M=$(PWD) modules
-
-clean:
-	$(MAKE) -C $(BUILDSYSTEM_DIR) M=$(PWD) clean
-
-install: all
-	$(MAKE) -C $(BUILDSYSTEM_DIR) M=$(PWD) modules_install
-
-endif

XDMA/linux-kernel/libxdma/version.h

-/*
- * This file is part of the Xilinx DMA IP Core driver for Linux
- *
- * Copyright (c) 2016-present,  Xilinx, Inc.
- * All rights reserved.
- *
- * This source code is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- */
-
-#ifndef __XDMA_VERSION_H__
-#define __XDMA_VERSION_H__
-
-#define DRV_MOD_MAJOR		2019
-#define DRV_MOD_MINOR		2
-#define DRV_MOD_PATCHLEVEL	42
-
-#define DRV_MODULE_VERSION      \
-	__stringify(DRV_MOD_MAJOR) "." \
-	__stringify(DRV_MOD_MINOR) "." \
-	__stringify(DRV_MOD_PATCHLEVEL)
-
-#define DRV_MOD_VERSION_NUMBER  \
-	((DRV_MOD_MAJOR)*1000 + (DRV_MOD_MINOR)*100 + DRV_MOD_PATCHLEVEL)
-
-#endif /* ifndef __XDMA_VERSION_H__ */

XDMA/linux-kernel/xdma/libxdma.c

-../libxdma/libxdma.c
\ No newline at end of file

XDMA/linux-kernel/xdma/libxdma.h

-../libxdma/libxdma.h
\ No newline at end of file