cosmetic: gsm_12_21.h: Fix trailing whitespace

Change-Id: Ifdcdcfe30c41da233899101e1057bfca7d645a66
diff --git a/include/osmocom/gsm/protocol/gsm_12_21.h b/include/osmocom/gsm/protocol/gsm_12_21.h
index 34622b3..6156ce9 100644
--- a/include/osmocom/gsm/protocol/gsm_12_21.h
+++ b/include/osmocom/gsm/protocol/gsm_12_21.h
@@ -445,7 +445,7 @@
 	NM_ATT_IPACC_NS_CFG		= 0xa0,
 	NM_ATT_IPACC_BSSGP_CFG		= 0xa1,
 	NM_ATT_IPACC_NS_LINK_CFG	= 0xa2,
-	NM_ATT_IPACC_RLC_CFG		= 0xa3,	
+	NM_ATT_IPACC_RLC_CFG		= 0xa3,
 	NM_ATT_IPACC_ALM_THRESH_LIST	= 0xa4,
 	NM_ATT_IPACC_MONIT_VAL_LIST	= 0xa5,
 	NM_ATT_IPACC_TIB_CONTROL	= 0xa6,
@@ -462,7 +462,7 @@
 
 
 	NM_ATT_BS11_RF_RES_IND_PER	= 0x8f,
-	
+
 	NM_ATT_BS11_RX_LEV_MIN_CELL	= 0x90,
 	NM_ATT_BS11_ABIS_EXT_TIME	= 0x91,
 	NM_ATT_BS11_TIMER_HO_REQUEST	= 0x92,