GFS2: Rename eattr.[ch] as xattr.[ch]

Use the more conventional name for the extended attribute
support code. Update all the places which care.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/Makefile b/fs/gfs2/Makefile
index 2a4fd89..21f7e46 100644
--- a/fs/gfs2/Makefile
+++ b/fs/gfs2/Makefile
@@ -1,6 +1,6 @@
 EXTRA_CFLAGS := -I$(src)
 obj-$(CONFIG_GFS2_FS) += gfs2.o
-gfs2-y := acl.o bmap.o dir.o eattr.o glock.o \
+gfs2-y := acl.o bmap.o dir.o xattr.o glock.o \
 	glops.o inode.o log.o lops.o main.o meta_io.o \
 	aops.o dentry.o export.o file.o \
 	ops_fstype.o ops_inode.o quota.o \