ARM: use the same branch insn on all architectures

For the "fixloop" implementation in start.S a number of different
instructions was used.  Unify code so all architectures use "blo"
here because it is more robust in case of incorrect alignments.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Albert ARIBAUD <albert.aribaud@free.fr>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Cc: Sandeep Paulraj <s-paulraj@ti.com>
Cc: Prafulla Wadaskar <prafulla@marvell.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Marek Vasut <marek.vasut@gmail.com>
Acked-by: Heiko Schocher <hs@denx.de>
diff --git a/arch/arm/cpu/arm1136/start.S b/arch/arm/cpu/arm1136/start.S
index e3e646c..d70ca1d 100644
--- a/arch/arm/cpu/arm1136/start.S
+++ b/arch/arm/cpu/arm1136/start.S
@@ -263,7 +263,7 @@
 	str	r1, [r0]
 	add	r2, r2, #8		/* each rel.dyn entry is 8 bytes */
 	cmp	r2, r3
-	ble	fixloop
+	blo	fixloop
 #endif
 #endif	/* #ifndef CONFIG_SKIP_RELOCATE_UBOOT */