Commit 401d1c4f5d2 ("common: Drop asm/global_data.h from common header") broke CONFIG_CMD_SQUASHFS=y

[Pali Rohár]

Hello!

Commit 401d1c4f5d2d29c4bc4beaec95402ca23eb63295 ("common: Drop
asm/global_data.h from common header") broke compilation of
squashfs filesystem when CONFIG_CMD_SQUASHFS=y is enabled.

Here is console output:

fs/squashfs/sqfs_inode.c: In function ‘sqfs_find_inode’:
fs/squashfs/sqfs_inode.c:121:18: warning: implicit declaration of function ‘le32_to_cpu’ [-Wimplicit-function-declaration]
  for (k = 0; k < le32_to_cpu(inode_count); k++) {
                  ^~~~~~~~~~~
  LD      u-boot
aarch64-linux-gnu-ld.bfd: fs/built-in.o: in function `sqfs_find_inode':
/u-boot/fs/squashfs/sqfs_inode.c:126: undefined reference to `le32_to_cpu'
aarch64-linux-gnu-ld.bfd: /u-boot/fs/squashfs/sqfs_inode.c:121: undefined reference to `le32_to_cpu'
Segmentation fault
make: *** [Makefile:1765: u-boot] Error 139
make: *** Deleting file 'u-boot'

When compiling U-Boot prior that commit, there is no error.

Simon and Tom: you have signed problematic mentioned commit. Could you
please look at it?