soc/intel/common/acpi: drop `RTC_EN` from static wake bits mask

`RTC_EN` is in the RTC well* so we can rely on the actual register
content instead of statically overriding it. Drop it from the static
wake bits mask.

* Tested on clevo/l140cu

Change-Id: Ia0ae71f0a472513233bc0fd5625faf15bf86beaf
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58211
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
diff --git a/src/soc/intel/common/block/acpi/acpi.c b/src/soc/intel/common/block/acpi/acpi.c
index 9bfb91a..4d3cb73 100644
--- a/src/soc/intel/common/block/acpi/acpi.c
+++ b/src/soc/intel/common/block/acpi/acpi.c
@@ -218,7 +218,7 @@
 	 * powerbtn or any other wake source like lidopen, key board press etc.
 	 */
 	pm1_en = ps->pm1_en;
-	pm1_en |= WAK_STS | RTC_EN | PWRBTN_EN;
+	pm1_en |= WAK_STS | PWRBTN_EN;
 
 	pm1_en = acpi_fill_soc_wake(pm1_en, ps);