Adderss compiler warnings on ppc64le and s390x

[ellert]

igzip/igzip_icf_body.c:7:1: warning: type of 'gen_icf_map_lh1' does not match original declaration [-Wlto-type-mismatch]
    7 | gen_icf_map_lh1(struct isal_zstream *, struct deflate_icf *, uint32_t);
      | ^
igzip/igzip_base_aliases.c:177:1: note: return value type mismatch
  177 | gen_icf_map_lh1(struct isal_zstream *stream, struct deflate_icf *matches_icf_lookup,
      | ^
igzip/igzip_base_aliases.c:177:1: note: type 'void' should match type 'uint64_t' igzip/igzip_base_aliases.c:177:1: note: 'gen_icf_map_lh1' was previously declared here igzip/igzip_base_aliases.c:177:1: note: code may be misoptimized unless '-fno-strict-aliasing' is used igzip/igzip_icf_body.c:9:1: warning: type of 'set_long_icf_fg' does not match original declaration [-Wlto-type-mismatch]
    9 | set_long_icf_fg(uint8_t *, uint64_t, uint64_t, struct deflate_icf *);
      | ^
igzip/igzip_base_aliases.c:170:1: note: type mismatch in parameter 2
  170 | set_long_icf_fg(uint8_t *next_in, uint8_t *end_in, struct deflate_icf *match_lookup,
      | ^
igzip/igzip_base_aliases.c:170:1: note: 'set_long_icf_fg' was previously declared here igzip/igzip_base_aliases.c:170:1: note: code may be misoptimized unless '-fno-strict-aliasing' is used igzip/igzip_base_aliases.c:62:1: warning: type of 'set_long_icf_fg_base' does not match original declaration [-Wlto-type-mismatch]
   62 | set_long_icf_fg_base(uint8_t *next_in, uint8_t *end_in, struct deflate_icf *match_lookup,
      | ^
igzip/igzip_icf_body.c:34:1: note: type mismatch in parameter 2
   34 | set_long_icf_fg_base(uint8_t *next_in, uint64_t processed, uint64_t input_size,
      | ^
igzip/igzip_icf_body.c:34:1: note: 'set_long_icf_fg_base' was previously declared here igzip/igzip_icf_body.c:34:1: note: code may be misoptimized unless '-fno-strict-aliasing' is used igzip/igzip_base_aliases.c:54:1: warning: type of 'adler32_base' does not match original declaration [-Wlto-type-mismatch]
   54 | adler32_base(uint32_t init, const unsigned char *buf, uint64_t len);
      | ^
igzip/adler32_base.c:34:1: note: type mismatch in parameter 3
   34 | adler32_base(uint32_t adler32, uint8_t *start, uint32_t length)
      | ^
igzip/adler32_base.c:34:1: note: type 'uint32_t' should match type 'uint64_t' igzip/adler32_base.c:34:1: note: 'adler32_base' was previously declared here igzip/adler32_base.c:34:1: note: code may be misoptimized unless '-fno-strict-aliasing' is used