Enable squashfs and erofs on arm64

squashfs will be used for asahi in the short term. We include squashfs
zstd support too, since the upstream FEX rootfs's use that.

We'll pivot to erofs long-term, so including that now too speculatively.

Signed-off-by: Alyssa Rosenzweig <[email protected]>

config-libkrunfw_aarch64

@@ -2594,7 +2594,55 @@ CONFIG_ARCH_HAS_GIGANTIC_PAGE=y
 CONFIG_CONFIGFS_FS=y
 # end of Pseudo filesystems
 
-# CONFIG_MISC_FILESYSTEMS is not set
+CONFIG_MISC_FILESYSTEMS=y
+# CONFIG_ORANGEFS_FS is not set
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_ECRYPT_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+# CONFIG_JFFS2_FS is not set
+# CONFIG_UBIFS_FS is not set
+# CONFIG_CRAMFS is not set
+CONFIG_SQUASHFS=y
+CONFIG_SQUASHFS_FILE_CACHE=y
+# CONFIG_SQUASHFS_FILE_DIRECT is not set
+CONFIG_SQUASHFS_DECOMP_SINGLE=y
+# CONFIG_SQUASHFS_CHOICE_DECOMP_BY_MOUNT is not set
+CONFIG_SQUASHFS_COMPILE_DECOMP_SINGLE=y
+# CONFIG_SQUASHFS_COMPILE_DECOMP_MULTI is not set
+# CONFIG_SQUASHFS_COMPILE_DECOMP_MULTI_PERCPU is not set
+# CONFIG_SQUASHFS_XATTR is not set
+CONFIG_SQUASHFS_ZLIB=y
+# CONFIG_SQUASHFS_LZ4 is not set
+# CONFIG_SQUASHFS_LZO is not set
+# CONFIG_SQUASHFS_XZ is not set
+CONFIG_SQUASHFS_ZSTD=y
+# CONFIG_SQUASHFS_4K_DEVBLK_SIZE is not set
+# CONFIG_SQUASHFS_EMBEDDED is not set
+CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
+# CONFIG_VXFS_FS is not set
+# CONFIG_MINIX_FS is not set
+# CONFIG_OMFS_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_QNX6FS_FS is not set
+# CONFIG_ROMFS_FS is not set
+# CONFIG_PSTORE is not set
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+CONFIG_EROFS_FS=y
+# CONFIG_EROFS_FS_DEBUG is not set
+CONFIG_EROFS_FS_XATTR=y
+CONFIG_EROFS_FS_POSIX_ACL=y
+CONFIG_EROFS_FS_SECURITY=y
+CONFIG_EROFS_FS_ZIP=y
+# CONFIG_EROFS_FS_ZIP_LZMA is not set
+# CONFIG_EROFS_FS_ZIP_DEFLATE is not set
+# CONFIG_EROFS_FS_PCPU_KTHREAD is not set
 # CONFIG_NETWORK_FILESYSTEMS is not set
 CONFIG_NLS=y
 CONFIG_NLS_CODEPAGE_437=y