brcm2708: add linux 4.4 support

- random-bcm2708 and spi-bcm2708 have been removed.
- sound-soc-bcm2708-i2s has been upstreamed as sound-soc-bcm2835-i2s.

Let's keep linux 4.1 for a while, since linux 4.4 appears to have some issues
with multicast traffic on RPi ethernet:
https://gist.github.com/Noltari/5b1cfdecce5ed4bc08fd

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

SVN-Revision: 48266

1 files changed, 21 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.4/0023-bcm2835-dma-Fix-dreq-not-set-for-slave-transfers.patch b/target/linux/brcm2708/patches-4.4/0023-bcm2835-dma-Fix-dreq-not-set-for-slave-transfers.patch
new file mode 100644
index 0000000000..42cf9fd795
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.4/0023-bcm2835-dma-Fix-dreq-not-set-for-slave-transfers.patch
@@ -0,0 +1,21 @@
+From 50eef5c715b894683aebf81332c82426dc10f8cb Mon Sep 17 00:00:00 2001
+From: Matthias Reichl <hias@horus.com>
+Date: Sat, 10 Oct 2015 12:29:18 +0200
+Subject: [PATCH 023/127] bcm2835-dma: Fix dreq not set for slave transfers
+
+Set dreq to slave_id if it is not set like in bcm2708-dmaengine.
+---
+ drivers/dma/bcm2835-dma.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/drivers/dma/bcm2835-dma.c
++++ b/drivers/dma/bcm2835-dma.c
+@@ -657,6 +657,8 @@ static int bcm2835_dma_slave_config(stru
+ 	}
+ 
+ 	c->cfg = *cfg;
++	if (!c->dreq)
++		c->dreq = cfg->slave_id;
+ 
+ 	return 0;
+ }