ar71xx: fix format of the 701-MIPS-ath79-add-routerboard-detection patches

Commit e15c63a375 ("ar71xx: add support for MikroTik RouterBOARD wAP
G-5HacT2HnD (wAP AC") broke the format of the patches. In unified diff
format, the unchanged, contextual lines must be preceded by a space
character.

Refresh the patches with quilt to fix them.

Fixes: e15c63a375 ("ar71xx: add support for MikroTik RouterBOARD wAPG-5HacT2HnD (wAP AC")
Signed-off-by: Gabor Juhos <juhosg@freemail.hu>

target/linux/ar71xx/patches-4.4/701-MIPS-ath79-add-routerboard-detection.patch

@@ -29,5 +29,5 @@
 +	    strstr(arcs_cmdline, "board=922gs"))
 +		ath79_prom_append_cmdline("console", "ttyS0,115200");
  }
-
+ 
  void __init prom_free_prom_memory(void)

target/linux/ar71xx/patches-4.9/701-MIPS-ath79-add-routerboard-detection.patch

@@ -29,5 +29,5 @@
 +	    strstr(arcs_cmdline, "board=922gs"))
 +		ath79_prom_append_cmdline("console", "ttyS0,115200");
  }
-
+ 
  void __init prom_free_prom_memory(void)