kernel: update 4.9 to 4.9.44

Refresh patches.
Adapt 704-phy-no-genphy-soft-reset.patch.
Remove brcm2708/950-0005-mm-Remove-the-PFN-busy-warning.patch.
Compile-tested on brcm2708/bcm2708 and x86/64.
Runtime-tested on brcm2708/bcm2708 and x86/64.

Fixes the following vulnerabilities:
- CVE-2017-7533
- CVE-2017-1000111
- CVE-2017-1000112

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

target/linux/generic/pending-4.9/480-mtd-set-rootfs-to-be-root-dev.patch

@@ -10,8 +10,6 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
  drivers/mtd/mtdcore.c | 10 ++++++++++
  1 file changed, 10 insertions(+)
 
-diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
-index d46e4adf6d2b..4d62d898dadc 100644
 --- a/drivers/mtd/mtdcore.c
 +++ b/drivers/mtd/mtdcore.c
 @@ -40,6 +40,7 @@
@@ -38,6 +36,3 @@ index d46e4adf6d2b..4d62d898dadc 100644
  	return 0;
  
  fail_added:
--- 
-2.11.0
-