package/podman: raise kernel header requirement to v4.14

Since its introduction in commit [1], the podman package has a
dependency on a toolchain with headers >= 3.17, which was propagated
from libseccomp and slirp4netns. The podman package also selects
BR2_PACKAGE_SHADOW which has a requirement on toolchain with
headers >= 4.14. See [2]. This requirement should have been
propagated.

This commit fixes this issue.

Fixes:

    WARNING: unmet direct dependencies detected for BR2_PACKAGE_SHADOW
      Depends on [n]: !BR2_STATIC_LIBS [=n] && BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_14 [=n]
      Selected by [y]:
      - BR2_PACKAGE_PODMAN [=y] && BR2_USE_MMU [=y] && BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS [=y] && BR2_PACKAGE_HOST_RUSTC_TARGET_ARCH_SUPPORTS [=y] && BR2_PACKAGE_LIBGPG_ERROR_ARCH_SUPPORTS [=y] && BR2_PACKAGE_LIBSECCOMP_ARCH_SUPPORTS [=y] && BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_17 [=y] && BR2_TOOLCHAIN_HAS_THREADS [=y] && BR2_USE_WCHAR [=y]

[1] https://gitlab.com/buildroot.org/buildroot/-/commit/ebbaac08e3f462bf023c12077f739ed1c0543eb2
[2] https://gitlab.com/buildroot.org/buildroot/-/commit/f78c5cb5cae93a9e63dad4361d78e1787759382f

Cc: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Julien Olivain <ju.o@free.fr>
Acked-by: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/podman/Config.in

@@ -5,7 +5,7 @@ config BR2_PACKAGE_PODMAN
 	depends on BR2_PACKAGE_HOST_RUSTC_TARGET_ARCH_SUPPORTS  # netavark
 	depends on BR2_PACKAGE_LIBGPG_ERROR_ARCH_SUPPORTS  # libgpgme
 	depends on BR2_PACKAGE_LIBSECCOMP_ARCH_SUPPORTS  # libseccomp
-	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_17  # libseccomp
+	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_14  # shadow
 	depends on BR2_TOOLCHAIN_HAS_THREADS  # conmon
 	depends on BR2_USE_WCHAR  # conmon
 	select BR2_PACKAGE_HOST_GO
@@ -81,12 +81,12 @@ endchoice
 
 endif
 
-comment "podman needs a toolchain w/ headers >= 3.17, threads, wchar"
+comment "podman needs a toolchain w/ headers >= 4.14, threads, wchar"
 	depends on BR2_USE_MMU
 	depends on BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS
 	depends on BR2_PACKAGE_HOST_RUSTC_TARGET_ARCH_SUPPORTS
 	depends on BR2_PACKAGE_LIBGPG_ERROR_ARCH_SUPPORTS
 	depends on BR2_PACKAGE_LIBSECCOMP_ARCH_SUPPORTS
-	depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_17 \
+	depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_14 \
 		|| !BR2_TOOLCHAIN_HAS_THREADS \
 		|| !BR2_USE_WCHAR