Set max-page-size for linking bootstrap

Without this the virtual addresses will not match the file offsets for
the final initfs blob on AArch64 as there it will align to 64k by
default.

recipes/core/bootstrap/recipe.toml

@@ -19,5 +19,6 @@ mkdir -v "${COOKBOOK_STAGE}/boot"
     -o "${COOKBOOK_STAGE}/boot/bootstrap" \
     --gc-sections \
     -T "${COOKBOOK_SOURCE}/src/${ARCH}.ld" \
+    -z max-page-size=4096 \
     "${COOKBOOK_BUILD}/${TARGET}/release/libbootstrap.a"
 """