soc/intel: Refactor do_global_reset() function

List of changes:
1. Rename do_global_reset() to force_global_reset()
2. Make force_global_reset() function static
3. Implement force_global_reset() into common/reset.c to avoid
dedicated SoC implementation
4. Remove redundant force_global_reset() implementation from
dedicated SoC
5. Make direct call to global_reset() from cse_lite.c
7. Drop CONFIG_HAVE_CF9_RESET_PREPARE Kconfig from APL SoC due
to common reset (soc/intel/common/reset.c) code migration
8. Remove unused function send_global_reset() from SKL me.c due
to common reset code migration
9. Delete heci.c from APL SoC as unused

Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Change-Id: I1c5dc8d5606ef28ffaed4a64d90f470ae1ffc2a6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45541
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>

src/soc/intel/common/reset.h

@@ -3,14 +3,7 @@
 #ifndef _INTEL_COMMON_RESET_H_
 #define _INTEL_COMMON_RESET_H_
 
-/*
- * Implement SoC specific global reset (i.e. a reset of both host and
- * ME partitions). Usually the ME is asked to perform the reset first.
- * If that doesn't work out, fall back to a manual global reset.
- */
-void do_global_reset(void);
-
-/* Prepare for reset, run do_global_reset(), halt. */
+/* Prepare for reset, run force_global_reset(), halt. */
 __noreturn void global_reset(void);
 
 #endif	/* _INTEL_COMMON_RESET_H_ */