ARM: 9036/1: uncompress: Fix dbgadtb size parameter name

The dbgadtb macro is passed the size of the appended DTB, not the end
address.

Fixes: c03e4147 ("ARM: 9010/1: uncompress: Print the location of appended DTB")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>