imxrt: ungate boot_mode even on non-hosted

When building debug mode for hardware, the `boot_mode` flag is
consulted. However, the `boot_mode` flag is only present when
debug mode is enabled on PC_HOSTED.

Remove the requirement for this to be built on PC_HOSTED in
order to fix compiling when built on native hardware with
debug mode enabled.

Signed-off-by: Sean Cross <[email protected]>

src/target/imxrt.c

@@ -172,10 +172,10 @@ bool imxrt_probe(target_s *const target)
 	target->target_options |= CORTEXM_TOPT_INHIBIT_NRST;
 	target->driver = "i.MXRT10xx";
 
-#if defined(ENABLE_DEBUG) && PC_HOSTED == 1
+#if defined(ENABLE_DEBUG)
 	const uint8_t boot_mode = (target_mem_read32(target, IMXRT_SRC_BOOT_MODE2) >> 24U) & 3U;
-#endif
 	DEBUG_TARGET("i.MXRT boot mode is %x\n", boot_mode);
+#endif
 	const uint32_t boot_cfg = target_mem_read32(target, IMXRT_SRC_BOOT_MODE1);
 	DEBUG_TARGET("i.MXRT boot config is %08" PRIx32 "\n", boot_cfg);
 	priv->boot_source = imxrt_boot_source(boot_cfg);