imx: parse-container: fix build warning

imx: parse-container: fix build warning

Fix build warning:
warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 3
has type ‘u64’ {aka ‘long long unsigned int’} [-Wformat=]
         printf("can't find memreg for image %d load address 0x%x, error %d\n",
warning: format ‘%lx’ expects argument of type ‘long unsigned int’, but
argument 3 has type ‘sc_faddr_t’ {aka ‘long long unsigned int’} [-Wformat=]
          debug("memreg %u 0x%lx -- 0x%lx\n", mr, start, end);

Signed-off-by: Peng Fan <peng.fan@nxp.com>