package/rockchip-mali: fix armeb build

Fix the following armeb build failure raised since the addition of the
package in commit 97c74a73e5dee17530647f89b2c7d8692781eb14:

ERROR: architecture for "/usr/lib/libmali-bifrost-g31-rxp0-gbm.so" is "AArch64", should be "ARM"

Fixes:
 - http://autobuild.buildroot.org/results/33ebfa936da8dfa4035db08a96f8872d7c9db6c3

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
[Arnout: instead of changing the condition to check for aarch64, add a
check for armeb]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/rockchip-mali/rockchip-mali.mk

@@ -14,7 +14,7 @@ ROCKCHIP_MALI_PROVIDES = libegl libgles libgbm
 
 ROCKCHIP_MALI_LIB = libmali-bifrost-g31-rxp0$(ROCKCHIP_MALI_SUFFIX).so
 ROCKCHIP_MALI_PKGCONFIG_FILES = egl gbm glesv2 mali
-ROCKCHIP_MALI_ARCH_DIR = $(if $(BR2_arm),arm-linux-gnueabihf,aarch64-linux-gnu)
+ROCKCHIP_MALI_ARCH_DIR = $(if $(BR2_arm)$(BR2_armeb),arm-linux-gnueabihf,aarch64-linux-gnu)
 ROCKCHIP_MALI_HEADERS = EGL FBDEV GLES GLES2 GLES3 KHR gbm.h
 
 # We need to create: