generic: fix relocate build with binutils 2.25.1

The new .abiflags section was kept, pushing the appended arguments to
the wrong offset and causing it to read the section instead, making
it fail on boot.

Fix this by dropping this section as well as the other sections.

Closes #21679.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

SVN-Revision: 48474

target/linux/generic/image/relocate/Makefile

@@ -29,7 +29,8 @@ LD		:= $(CROSS_COMPILE)ld
 OBJCOPY		:= $(CROSS_COMPILE)objcopy
 OBJDUMP		:= $(CROSS_COMPILE)objdump
 
-BIN_FLAGS	:= -O binary -R .reginfo -R .note -R .comment -R .mdebug -S
+BIN_FLAGS	:= -O binary -R .reginfo -R .note -R .comment -R .mdebug \
+		   -R .MIPS.abiflags -S
 
 CFLAGS		= -D__KERNEL__ -Wall -Wstrict-prototypes -Wno-trigraphs -Os \
 		  -fno-strict-aliasing -fno-common -fomit-frame-pointer -G 0 \