linux: add support for Linux 5.0

This sets 5.0 to be the default, moving from 4.19 which was used instead
of 4.20 for the LTS branch.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

linux/Config.in

@@ -30,10 +30,8 @@ config BR2_LINUX_NEEDS_MODULES
 choice
 	prompt "Kernel version"
 
-# We are intentionally staying at 4.19 for the next Buildroot LTS
-# release (2019.02)
 config BR2_LINUX_KERNEL_LATEST_VERSION
-	bool "Latest version (4.19)"
+	bool "Latest version (5.0)"
 
 config BR2_LINUX_KERNEL_LATEST_CIP_VERSION
 	bool "Latest CIP SLTS version (v4.4.171-cip30)"
@@ -123,7 +121,7 @@ endif
 
 config BR2_LINUX_KERNEL_VERSION
 	string
-	default "4.19.25" if BR2_LINUX_KERNEL_LATEST_VERSION
+	default "5.0.2" if BR2_LINUX_KERNEL_LATEST_VERSION
 	default "v4.4.171-cip30" if BR2_LINUX_KERNEL_LATEST_CIP_VERSION
 	default BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE \
 		if BR2_LINUX_KERNEL_CUSTOM_VERSION