[qca-ssdk]: add some compile options to remove unnecessary warnings

The new added compile options will be used for armv8.
It will remove below warnings:
1. arch/arm64/include/asm/barrier.h:67:8: warning:
dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
  union { typeof(*p) __val; char __c[1]; } __u;   \
2. adpt_hppe_fdb.c:993:58: warning:
pointer targets in passing argument 3 of '_get_fdb_table_entryindex_by_entry' differ in signedness [-Wpointer-sign]
3. adpt_hppe_misc.c:841:15: warning:
variable 'sign' set but not used [-Wunused-but-set-variable]

Change-Id: Idcb0e1eebea29c927d858d73b6c07e2a5d6af1cc
Signed-off-by: xiaofeis <xiaofeis@codeaurora.org>
1 file changed
tree: 011a0c939421eb44645cdecdc0026d26a8575b4c
  1. app/
  2. include/
  3. make/
  4. src/
  5. ChangeLog
  6. config
  7. ko_Makefile
  8. Makefile