util/intelp2m: Check keywords in common code

TEST = ./intelp2m -n -file inteltool.log;
       ./intelp2m -fld cb -file inteltool.log;
       ./intelp2m -fld fsp -file inteltool.log;
       ./intelp2m -fld raw -file inteltool.log.
       Before and after the patch, gpio.h is no different.

Change-Id: I8af28960e41fcb97f03fe97c42cdddde07b3615a
Signed-off-by: Maxim Polyakov <max.senia.poliak@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45167
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>

util/intelp2m/platforms/common/template.go

@@ -0,0 +1,15 @@
+package common
+
+import "strings"
+
+// KeywordsCheck - check if one of the keyword from the <keywords> group is included in the
+// <line> string. Returns false if no word was found, or true otherwise and also this word
+// itself
+func KeywordsCheck(line string, keywords ...string) (bool, string) {
+	for _, key := range keywords {
+		if strings.Contains(line, key) {
+			return true, key
+		}
+	}
+	return false, ""
+}