dropbear: Activate PIE by default

This activates PIE ASLR support by default when the regular option is
selected.

This increases the binary size by 18% uncompressed and 17% compressed
on MIPS BE.

old:
164,261 /usr/sbin/dropbear
 85,648 dropbear_2019.78-2_mips_24kc.ipk

new:
194,492 /usr/sbin/dropbear
100,309 dropbear_2019.78-2_mips_24kc.ipk

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Petr Štetiar <ynezz@true.cz>

package/network/services/dropbear/Makefile

@@ -22,6 +22,7 @@ PKG_LICENSE_FILES:=LICENSE libtomcrypt/LICENSE libtommath/LICENSE
 PKG_CPE_ID:=cpe:/a:matt_johnston:dropbear_ssh_server
 
 PKG_BUILD_PARALLEL:=1
+PKG_ASLR_PIE_REGULAR:=1
 PKG_USE_MIPS16:=0
 PKG_FIXUP:=autoreconf