lantiq: remove clk_round_rate() patch

This patch was merged into upstream Linux 4.1.
This fixes #21587 and was introduced in r48223.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

SVN-Revision: 48229

target/linux/lantiq/patches-4.1/0050-MIPS-lantiq-add-clk_round_rate.patch

@@ -1,43 +0,0 @@
-From b3c10c6c19a9a0ad2b967b6afc8d8302ff4e10f9 Mon Sep 17 00:00:00 2001
-From: Hauke Mehrtens <hauke@hauke-m.de>
-Date: Sun, 25 Oct 2015 21:47:23 +0100
-Subject: [PATCH] MIPS: lantiq: add clk_round_rate()
-
-This adds a basic implementation of clk_round_rate()
-The clk_round_rate() function is called by multiple drivers and
-subsystems now and the lantiq clk driver is supposed to export this,
-but doesn't do so, this causes linking problems like this one:
-ERROR: "clk_round_rate" [drivers/media/v4l2-core/videodev.ko] undefined!
-
-Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
-Cc: <stable@vger.kernel.org> # 4.1+
----
- arch/mips/lantiq/clk.c | 17 +++++++++++++++++
- 1 file changed, 17 insertions(+)
-
---- a/arch/mips/lantiq/clk.c
-+++ b/arch/mips/lantiq/clk.c
-@@ -116,6 +116,23 @@ long clk_round_rate(struct clk *clk, uns
- }
- EXPORT_SYMBOL(clk_round_rate);
- 
-+long clk_round_rate(struct clk *clk, unsigned long rate)
-+{
-+	if (unlikely(!clk_good(clk)))
-+		return 0;
-+	if (clk->rates && *clk->rates) {
-+		unsigned long *r = clk->rates;
-+
-+		while (*r && (*r != rate))
-+			r++;
-+		if (!*r) {
-+			return clk->rate;
-+		}
-+	}
-+	return rate;
-+}
-+EXPORT_SYMBOL(clk_round_rate);
-+
- int clk_enable(struct clk *clk)
- {
- 	if (unlikely(!clk_good(clk)))