{linux, linux-headers}: bump 5.4.x series

https://lwn.net/Articles/1049060/
"This is the LAST 5.4.y release.  It is now end-of-life and should not be
 used by anyone, anymore.  As of this point in time, there are 1539
 documented unfixed CVEs for this kernel branch, and that number will
 only increase over time as more CVEs get assigned for kernel bugs."

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
Signed-off-by: Julien Olivain <ju.o@free.fr>

linux/linux.hash

@@ -6,7 +6,7 @@ sha256  ad068bfdb604ec0f4f7de385c8e7ab944008aa78a4aeeca94f53206e6726bfda  linux-
 # From https://www.kernel.org/pub/linux/kernel/v5.x/sha256sums.asc
 sha256  83157953598b026fb721c906c60dfdfd8e986f25ecb9910f3504f690e2770e05  linux-5.15.196.tar.xz
 sha256  eb6b76c269d2dc09791638b10b9dcb9d79fd2abd45113a31fc03f68731caa875  linux-5.10.246.tar.xz
-sha256  b7718766d060e6714bbe47004c71c360e844758f42fbf62cbaa5571119527962  linux-5.4.301.tar.xz
+sha256  ae6a3207f12aa4d6cfb0fa793ec9da4a6fcdfdcb57d869d63d6b77e3a8c1423d  linux-5.4.302.tar.xz
 # Locally computed
 sha256  fb0edc3c18e47d2b6974cb0880a0afb5c3fa08f50ee87dfdf24349405ea5f8ae  linux-cip-5.10.162-cip24.tar.gz
 sha256  b5539243f187e3d478d76d44ae13aab83952c94b885ad889df6fa9997e16a441  linux-cip-5.10.162-cip24-rt10.tar.gz

package/linux-headers/Config.in.host

@@ -458,7 +458,7 @@ endchoice
 
 config BR2_DEFAULT_KERNEL_HEADERS
 	string
-	default "5.4.301"	if BR2_KERNEL_HEADERS_5_4
+	default "5.4.302"	if BR2_KERNEL_HEADERS_5_4
 	default "5.10.246"	if BR2_KERNEL_HEADERS_5_10
 	default "5.15.196"	if BR2_KERNEL_HEADERS_5_15
 	default "6.1.158"	if BR2_KERNEL_HEADERS_6_1