ANDROID: sdcardfs: get rid of 'parent' argument of ->d_compare()

->d_compare() doesn't get parent as a separate argument anymore
according to upstream commit 6fa67e707559 ("get rid of 'parent'
argument of ->d_compare()").

We run into following build error otherwise:

  CC [M]  fs/sdcardfs/dentry.o
fs/sdcardfs/dentry.c:183:15: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
  .d_compare = sdcardfs_cmp_ci,
               ^
fs/sdcardfs/dentry.c:183:15: note: (near initialization for ‘sdcardfs_ci_dops.d_compare’)

Change-Id: I51801b57aeb8287f1e69ce6cb944e8722ff37bea
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
diff --git a/fs/sdcardfs/dentry.c b/fs/sdcardfs/dentry.c
index e4156a6..f22de8a 100644
--- a/fs/sdcardfs/dentry.c
+++ b/fs/sdcardfs/dentry.c
@@ -147,8 +147,7 @@
 /*
  * Case insensitive compare of two vfat names.
  */
-static int sdcardfs_cmp_ci(const struct dentry *parent,
-		const struct dentry *dentry,
+static int sdcardfs_cmp_ci(const struct dentry *dentry,
 		unsigned int len, const char *str, const struct qstr *name)
 {
 	/* This function is copy of vfat_cmpi */