console: Add new function die_with_post_code()

Add a new helper function die_with_post_code() that generates a post
code and an error string prior to halting the CPU.

BUG=b:124401932
BRANCH=sarien
TEST=build coreboot for sarien and arcada platforms

Change-Id: I87551d60b253dc13ff76f7898c1f112f573a00a2
Signed-off-by: Keith Short <keithshort@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32838
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/console/die.c

@@ -36,4 +36,11 @@ void __noreturn die(const char *msg)
 	die_notify();
 	halt();
 }
+
+/* Report a fatal error with a post code */
+void __noreturn die_with_post_code(uint8_t value, const char *msg)
+{
+	post_code(value);
+	die(msg);
+}
 #endif

src/include/console/console.h

@@ -43,6 +43,7 @@ void post_log_clear(void);
 /* this function is weak and can be overridden by a mainboard function. */
 void mainboard_post(u8 value);
 void __noreturn die(const char *msg);
+void __noreturn die_with_post_code(uint8_t value, const char *msg);
 
 /*
  * This function is weak and can be overridden to provide additional