configs/lego_ev3_defconfig: bump Linux to 4.19.315 to fix compilation error

The Linux kernel failed to build since commit e88225ed882 (package/binutils:
make 2.41 the default version). The new version contains the commit
790756c7e0229 ("ARM: 8933/1: replace Sun/Solaris style flag on section
directive") that fixes the issue.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Acked-by: David Lechner <david@lechnology.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

configs/lego_ev3_defconfig

@@ -13,7 +13,7 @@ BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_19=y
 # Kernel
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.19"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.19.315"
 BR2_LINUX_KERNEL_DEFCONFIG="davinci_all"
 BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="board/lego/ev3/linux.fragment"
 BR2_LINUX_KERNEL_UIMAGE=y