ffmpeg: adjust ARM optimizations

We no longer support ARM less than v3 so kill dead code.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/multimedia/ffmpeg/ffmpeg.mk

@@ -136,7 +136,7 @@ endif
 # Explicitly disable everything that doesn't match for ARM
 # FFMPEG "autodetects" by compiling an extended instruction via AS
 # This works on compilers that aren't built for generic by default
-ifeq ($(BR2_generic_arm)$(BR2_arm7tdmi)$(BR2_arm610)$(BR2_arm710)$(BR2_arm720t)$(BR2_arm920t)$(BR2_arm922t),y)
+ifeq ($(BR2_arm7tdmi)$(BR2_arm720t)$(BR2_arm920t)$(BR2_arm922t)$(BR2_strongarm)$(BR2_fa526),y)
 FFMPEG_CONF_OPT += --disable-armv5te
 endif
 ifeq ($(BR2_arm1136jf_s)$(BR2_arm1176jz_s)$(BR2_arm1176jzf-s),y)