powerpc32/bpf: fix loading fsession func metadata using PPC_LI32

powerpc32/bpf: fix loading fsession func metadata using PPC_LI32

PPC_RAW_LI32 is not a valid macro in the PowerPC BPF JIT. Use PPC_LI32,
which correctly handles immediate loads for large values.
Fixes the build error introduced when adding fsession support on ppc32.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202604040212.jIxEd2DW-lkp@intel.com/
Fixes: 92258b5bf1ec ("powerpc32/bpf: Add fsession support")
Signed-off-by: Abhishek Dubey <adubey@linux.ibm.com>
Reviewed-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20260408055301.232745-1-adubey@linux.ibm.com