util/intelp2m: use import once for all included modules

There is no need to repeat "import" for each module in GoLang. Use
this keyword only once in each file for code cleanliness.

Change-Id: Ibb24fafd409b31b174946a39ca1f810d59b87e76
Signed-off-by: Maxim Polyakov <max.senia.poliak@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55985
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

util/intelp2m/main.go

@@ -1,11 +1,12 @@
 package main
 
-import "flag"
-import "fmt"
-import "os"
-
-import "./parser"
-import "./config"
+import (
+	"flag"
+	"fmt"
+	"os"
+	"./parser"
+	"./config"
+)
 
 // generateOutputFile - generates include file
 // parser            : parser data structure