soc/amd/common/block/cpu/noncar/write_resume_eip: use raw MSR data

Since mst_t is a union of the struct containing the lower and higher 32
bits and the raw 64 bit value, the address of the bootblock_resume_entry
can be directly written to the raw value instead of needing to split it
into the lower and higher 32 bits and assigning those separately.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Suggested-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: I7ebab1784ec592e18c29001b1cf3ee7790615bf8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73635
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>

src/soc/amd/common/block/cpu/noncar/write_resume_eip.c

@@ -12,8 +12,7 @@ asmlinkage void bootblock_resume_entry(void);
 void write_resume_eip(void)
 {
 	msr_t s3_resume_entry = {
-		.hi = (uint64_t)(uintptr_t)bootblock_resume_entry >> 32,
-		.lo = (uintptr_t)bootblock_resume_entry & 0xffffffff,
+		.raw = (uintptr_t)bootblock_resume_entry,
 	};
 
 	/*