Fix: Move COMPRESSION_COMMAND_DEPS before first use

This is a fixed version of commit a8f0bb8d
which was reverted recently by commit 88d65e51.

To be concise, the code that was moved need to be outside of block "ifneq ($(BOARD_KERNEL_MODULES_16K),)"
in order for non 16K builds to have no errors.

Bug: 349524000
Change-Id: I6264c984837b8aa479c353abee1526bab2dd83ec
Signed-off-by: cactusnoh <cactusnoh@gmail.com>