tree wide: Convert "if (CONFIG_.*_TPM.*)" to "if (IS_ENABLED(...))"

Change-Id: Ib73abb0ada7dfdfab3487c005719e19f51ef1812
Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@no-log.org>
Reviewed-on: https://review.coreboot.org/13779
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
diff --git a/src/cpu/intel/haswell/romstage.c b/src/cpu/intel/haswell/romstage.c
index 6da7fd9..9932a50 100644
--- a/src/cpu/intel/haswell/romstage.c
+++ b/src/cpu/intel/haswell/romstage.c
@@ -267,7 +267,7 @@
 		printk(BIOS_DEBUG, "Romstage handoff structure not added!\n");
 
 	post_code(0x3f);
-	if (CONFIG_LPC_TPM) {
+	if (IS_ENABLED(CONFIG_LPC_TPM)) {
 		init_tpm(wake_from_s3);
 	}
 }