ARM: 8896/1: VDSO: Don't leak kernel addresses

ARM: 8896/1: VDSO: Don't leak kernel addresses

Since commit c50104c2c22fe576 ("printk: hash addresses printed with
%p"), an obfuscated kernel pointer is printed at every boot if
debugging is enabled:

    vdso: 1 text pages at base (____ptrval____)

Remove the print completely, as it's useless without the address.

Based on commit 75e00493da6f6aec ("arm64/vdso: don't leak kernel
addresses").

Fixes: c50104c2c22fe576 ("printk: hash addresses printed with %p")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>