treewide: use APK compatible version schema

Different from OPKG, APK uses a deterministic version schema which chips
the version into chunks and compares them individually. This enforces a
certain schema which was previously entirely flexible.

 - Releases are added at the very and end prefixed with an `r` like
`1.2.3-r3`.
- Hashes are prefixed with a `~` like `1.2.3~abc123`.
- Dates become semantic versions, like `2024.04.01`
- Extra tags are possible like `_git`, `_alpha` and more.

For full details see the APK test list:
https://gitlab.alpinelinux.org/alpine/apk-tools/-/blob/master/test/version.data

Signed-off-by: Paul Spooren <mail@aparcar.org>

include/kernel.mk

@@ -211,8 +211,8 @@ define KernelPackage
     SECTION:=kernel
     CATEGORY:=Kernel modules
     DESCRIPTION:=$(DESCRIPTION)
-    EXTRA_DEPENDS:=kernel (=$(LINUX_VERSION)-$(LINUX_RELEASE)-$(LINUX_VERMAGIC))
-    VERSION:=$(LINUX_VERSION)$(if $(PKG_VERSION),+$(PKG_VERSION))-$(if $(PKG_RELEASE),$(PKG_RELEASE),$(LINUX_RELEASE))
+    EXTRA_DEPENDS:=kernel (=$(LINUX_VERSION)~$(LINUX_VERMAGIC)-r$(LINUX_RELEASE))
+    VERSION:=$(LINUX_VERSION)$(if $(PKG_VERSION),.$(PKG_VERSION))-r$(if $(PKG_RELEASE),$(PKG_RELEASE),$(LINUX_RELEASE))
     PKGFLAGS:=$(PKGFLAGS)
     $(call KernelPackage/$(1))
     $(call KernelPackage/$(1)/$(BOARD))