soc/intel/apollolake: Correct the logic for the legacy 8254 timer

The `use_8254` should be flipped, the same as the other Intel
SOCs.

Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Change-Id: I2d6c859c0910b796d2ae5874a560ff9974578106
Reviewed-on: https://review.coreboot.org/c/coreboot/+/77409
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>

src/soc/intel/apollolake/chip.c

@@ -749,7 +749,7 @@ void platform_fsp_silicon_init_params_cb(FSPS_UPD *silupd)
 
 	/* 8254 Timer */
 	bool use_8254 = get_uint_option("legacy_8254_timer", CONFIG(USE_LEGACY_8254_TIMER));
-	silconfig->Timer8254ClkSetting = use_8254;
+	silconfig->Timer8254ClkSetting = !use_8254;
 
 	/* FSP should let coreboot set subsystem IDs, which are read/write-once */
 	silconfig->SubSystemVendorId = 0;