powerpc: Fix ppc32 build

hulk inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8TAWP



--------------------------------

PPC32 could not build with the error "__end_interrupt" undeclared. This
patch fixed it.

Fixes: d1dda26f ("powerpc/fsl_booke/kaslr: Fix preserved memory size for int-vectors issue")
Signed-off-by: GUO Zihua <guozihua@huawei.com>