kernel: bump 4.19 to 4.19.52

Refreshed all patches.

Fixes:

- CVE-2019-11479
- CVE-2019-11478
- CVE-2019-11477

Also fix a malformed patch issue caught during refresh.

It was caused by removing a whitespace without altering
the index values in a patch which alters a patch.

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Fixes: cf65262492 ("kernel: bump 4.19 to 4.19.51")
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>

target/linux/ath79/patches-4.19/0027-MIPS-ath79-drop-legacy-IRQ-code.patch

@@ -208,7 +208,7 @@ Signed-off-by: John Crispin <john@phrozen.org>
  
  #include <asm/bootinfo.h>
  #include <asm/idle.h>
-@@ -311,6 +312,11 @@ void __init plat_time_init(void)
+@@ -305,6 +306,11 @@ void __init plat_time_init(void)
  	mips_hpt_frequency = cpu_clk_rate / 2;
  }
  

target/linux/ath79/patches-4.19/0028-MIPS-ath79-drop-machfiles.patch

@@ -944,7 +944,7 @@ Signed-off-by: John Crispin <john@phrozen.org>
  
  #define ATH79_SYS_TYPE_LEN	64
  
-@@ -236,25 +235,21 @@ void __init plat_mem_setup(void)
+@@ -230,25 +229,21 @@ void __init plat_mem_setup(void)
  	else if (fw_passed_dtb)
  		__dt_setup_arch((void *)KSEG0ADDR(fw_passed_dtb));
  
@@ -979,7 +979,7 @@ Signed-off-by: John Crispin <john@phrozen.org>
  {
  	struct device_node *np;
  	struct clk *clk;
-@@ -284,66 +279,12 @@ static void __init ath79_of_plat_time_in
+@@ -278,66 +273,12 @@ static void __init ath79_of_plat_time_in
  	clk_put(clk);
  }
  

target/linux/ath79/patches-4.19/910-unaligned_access_hacks.patch

@@ -728,7 +728,7 @@
  EXPORT_SYMBOL(xfrm_parse_spi);
 --- a/net/ipv4/tcp_input.c
 +++ b/net/ipv4/tcp_input.c
-@@ -3898,14 +3898,16 @@ static bool tcp_parse_aligned_timestamp(
+@@ -3912,14 +3912,16 @@ static bool tcp_parse_aligned_timestamp(
  {
  	const __be32 *ptr = (const __be32 *)(th + 1);