fix(fconf): fix type error displaying disable_auth

fix(fconf): fix type error displaying disable_auth

disable_auth is defined as uint32_t and must be displayed
as an unsigned int.

lib/fconf/fconf_tbbr_getter.c:
In function ‘fconf_populate_tbbr_dyn_config’:
include/common/debug.h:46:41: error:
format ‘%d’ expects argument of type ‘int’, but argument 3 has
 type ‘uint32_t’ {aka ‘unsigned int’} [-Werror=format=]
   46 | #define LOG_MARKER_WARNING              "\x1e"  /* 30 */
      |                                         ^~~~~~
include/common/debug.h:77:32: note:
 in expansion of macro ‘LOG_MARKER_WARNING’
   77 | # define WARN(...) tf_log(LOG_MARKER_WARNING __VA_ARGS__)
      |                           ^~~~~~~~~~~~~~~~~~
lib/fconf/fconf_tbbr_getter.c:47:17: note:
in expansion of macro ‘WARN’
   47 |                 WARN("Invalid value for `%s` cell %d\n",
      |                 ^~~~
include/common/debug.h:48:41: error:
format ‘%d’ expects argument of type ‘int’, but argument 5 has
 type ‘uint32_t’ {aka ‘unsigned int’} [-Werror=format=]
   48 | #define LOG_MARKER_VERBOSE              "\x32"  /* 50 */
      |                                         ^~~~~~
include/common/debug.h:58:32: note:
in definition of macro ‘no_tf_log’
   58 |                 tf_log(fmt, ##__VA_ARGS__);     \
      |                        ^~~
include/common/debug.h:91:35: note:
in expansion of macro ‘LOG_MARKER_VERBOSE’
   91 | # define VERBOSE(...)
      |           no_tf_log(LOG_MARKER_VERBOSE __VA_ARGS__)
      |                     ^~~~~~~~~~~~~~~~~~
lib/fconf/fconf_tbbr_getter.c:74:9: note:
in expansion of macro ‘VERBOSE’
   74 |    VERBOSE("%s%s%s %d\n","FCONF: `tbbr.", "disable_auth",
      |    ^~~~~~~
cc1: all warnings being treated as errors

Change-Id: I0164ddfe511406cc1a8d014a368ef3e3c5f8cd27
Signed-off-by: Lionel Debieve <lionel.debieve@foss.st.com>