[debian] fix tabulation in patch

debian/patches/02-upnp.patch

@@ -7,11 +7,11 @@ Last-Update: 2021-01-16
 --- i2pd.orig/Makefile
 +++ i2pd/Makefile
 @@ -21,7 +21,7 @@ include filelist.mk
- USE_AESNI      := $(or $(USE_AESNI),yes)
- USE_STATIC     := $(or $(USE_STATIC),no)
- USE_MESHNET    := $(or $(USE_MESHNET),no)
--USE_UPNP       := $(or $(USE_UPNP),no)
-+USE_UPNP       := $(or $(USE_UPNP),yes)
- DEBUG          := $(or $(DEBUG),yes)
+ USE_AESNI	:= $(or $(USE_AESNI),yes)
+ USE_STATIC	:= $(or $(USE_STATIC),no)
+ USE_MESHNET	:= $(or $(USE_MESHNET),no)
+-USE_UPNP	:= $(or $(USE_UPNP),no)
++USE_UPNP	:= $(or $(USE_UPNP),yes)
+ DEBUG		:= $(or $(DEBUG),yes)
  
  ifeq ($(DEBUG),yes)