cosmetic: Fix trailing whitespace in several files

Change-Id: Ifafb68353960fc5046661854ccfb8d783b0efb14
diff --git a/GSM/GSMCommon.h b/GSM/GSMCommon.h
index f703c30..a3ada26 100644
--- a/GSM/GSMCommon.h
+++ b/GSM/GSMCommon.h
@@ -166,7 +166,7 @@
         unsigned newTN = (mTN + other.mTN) % 8;
 		uint64_t newFN = (mFN+other.mFN + (mTN + other.mTN)/8) % gHyperframe;
         return Time(newFN,newTN);
-    } 
+    }
 
 	int operator-(const Time& other) const
 	{