Makefile.mk: Remove "crt0" dead code

Also removes some dead code below which uses a dongle.py binary.

Signed-off-by: Maximilian Brune <maximilian.brune@9elements.com>
Change-Id: Ia9b31a79f7637d31bbd824a8f6ad9137df429711
Reviewed-on: https://review.coreboot.org/c/coreboot/+/90818
Reviewed-by: Jérémy Compostella <jeremy.compostella@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/arch/x86/Kconfig

@@ -185,7 +185,7 @@ config BOOTBLOCK_DEBUG_SPINLOOP
 	bool
 	default n
 	help
-	  Add a spin (JMP .) in bootblock_crt0.S during early bootblock to wait
+	  Add a spin (JMP .) in entry32.S during early bootblock to wait
 	  for a JTAG debugger to break into the execution sequence.
 
 config HAVE_CMOS_DEFAULT

src/commonlib/include/commonlib/console/post_codes.h

@@ -34,7 +34,7 @@
 #define POSTCODE_CODE_CLEAR				0x00
 
 /**
- * \brief  Entry into 'crt0.s'. reset code jumps to here
+ * \brief  Entry into 'entry16.S'. reset code jumps to here
  *
  * First instruction that gets executed after the reset vector jumps.
  * This indicates that the reset vector points to the correct code segment.

src/soc/amd/common/block/cpu/car/cache_as_ram.S

@@ -3,7 +3,7 @@
 /******************************************************************************
  * $Workfile:: cache_as_ram.S
  *
- * Description: CAR setup called from bootblock_crt0.S.
+ * Description: CAR setup called from entry32.S.
  *
  ******************************************************************************
  */

src/soc/intel/common/block/cpu/car/cache_as_ram_fsp.S

@@ -90,7 +90,7 @@ CAR_init_done:
 	or	%rsi, %rdi
 	andl	$0xfffffff0, %esp
 #else
-	/* Restore the timestamp from bootblock_crt0.S (ebp:mm1) */
+	/* Restore the timestamp from entry32.S (ebp:mm1) */
 	push	%ebp
 	movd	%mm1, %eax
 	push	%eax