kernel: bump 4.9 to 4.9.117

Refreshed all patches

Compile-tested on: ar71xx
Runtime-tested on: ar71xx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>

target/linux/generic/backport-4.9/050-usb-dwc2-Remove-unnecessary-kfree.patch

@@ -14,7 +14,7 @@ Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
 
 --- a/drivers/usb/dwc2/hcd.c
 +++ b/drivers/usb/dwc2/hcd.c
-@@ -5200,7 +5200,6 @@ error3:
+@@ -5202,7 +5202,6 @@ error3:
  error2:
  	usb_put_hcd(hcd);
  error1:

target/linux/generic/backport-4.9/500-ext4-fix-check-to-prevent-initializing-reserved-inod.patch

@@ -33,7 +33,7 @@ Signed-off-by: Theodore Ts'o <tytso@mit.edu>
 
 --- a/fs/ext4/ialloc.c
 +++ b/fs/ext4/ialloc.c
-@@ -1313,7 +1313,10 @@ int ext4_init_inode_table(struct super_b
+@@ -1316,7 +1316,10 @@ int ext4_init_inode_table(struct super_b
  			    ext4_itable_unused_count(sb, gdp)),
  			    sbi->s_inodes_per_block);
  

target/linux/generic/hack-4.9/902-debloat_proc.patch

@@ -232,7 +232,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  		return -ENOMEM;
 --- a/mm/vmalloc.c
 +++ b/mm/vmalloc.c
-@@ -2713,6 +2713,8 @@ static const struct file_operations proc
+@@ -2714,6 +2714,8 @@ static const struct file_operations proc
  
  static int __init proc_vmalloc_init(void)
  {

target/linux/generic/pending-4.9/890-uart_optional_sysrq.patch

@@ -15,7 +15,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 
 --- a/include/linux/serial_core.h
 +++ b/include/linux/serial_core.h
-@@ -455,7 +455,7 @@ extern void uart_handle_cts_change(struc
+@@ -456,7 +456,7 @@ extern void uart_handle_cts_change(struc
  extern void uart_insert_char(struct uart_port *port, unsigned int status,
  		 unsigned int overrun, unsigned int ch, unsigned int flag);