grub: link squash4.mod into the executable

Make sure that GRUB can load squashfs, so that it can mount the system
image and load the kernel, or other modules, from there directly.

Closes: https://booting.oniroproject.org/distro/oniro/-/issues/243



Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@huawei.com>

meta-oniro-core/recipes-bsp/grub/grub-efi_%.bbappend

@@ -10,3 +10,7 @@
 # globally in OPTIMIZE_FOR=security mode.
 
 TARGET_CFLAGS:remove = "-Werror=array-bounds"
+
+# Make sure that GRUB can load squashfs, so that it can mount the system image
+# and load the kernel, or other modules, from there directly.
+GRUB_BUILDIN:append = " squash4"

meta-oniro-core/recipes-bsp/grub/grub_%.bbappend

@@ -10,3 +10,7 @@
 # globally in OPTIMIZE_FOR=security mode.
 
 TARGET_CFLAGS:remove = "-Werror=array-bounds"
+
+# Make sure that GRUB can load squashfs, so that it can mount the system image
+# and load the kernel, or other modules, from there directly.
+GRUB_BUILDIN:append = " squash4"