bootutil: fix unitialized variable warning
For some configurations, eg CONFIG_BOOT_DIRECT_XIP=y, fih_rc might
never be initialized; initialize and fix warning.
@@ -2207,7 +2207,7 @@ context_boot_go(struct boot_loader_state *state, struct boot_rsp *rsp)
uint32_t img_sz;
uint32_t img_loaded = 0;
#endif /* MCUBOOT_RAM_LOAD */
- fih_int fih_rc;
+ fih_int fih_rc = FIH_FAILURE;
memset(state, 0, sizeof(struct boot_loader_state));
