[ARM] Extend the usage of TARGET_GCC_VERSION for gdb and arm-eabi-*.

In the future to upgrade the gcc version we just need to edit one
line in core/config.mk.

Change-Id: I01bb38c38f2388913bb7369aa4b2da480411dfbe
diff --git a/core/dumpvar.mk b/core/dumpvar.mk
index c47aa0f..47ac9e2 100644
--- a/core/dumpvar.mk
+++ b/core/dumpvar.mk
@@ -15,6 +15,10 @@
         # this should be copied to HOST_OUT_EXECUTABLES instead
         ABP:=$(ABP):$(PWD)/prebuilts/gcc/$(HOST_PREBUILT_TAG)/arm/arm-linux-androideabi-$(TARGET_GCC_VERSION)/bin
     endif
+    ifneq ($(wildcard $(PWD)/prebuilts/gcc/$(HOST_PREBUILT_TAG)/arm/arm-eabi-$(TARGET_GCC_VERSION)/bin),)
+        # this should be copied to HOST_OUT_EXECUTABLES instead
+        ABP:=$(ABP):$(PWD)/prebuilts/gcc/$(HOST_PREBUILT_TAG)/arm/arm-eabi-$(TARGET_GCC_VERSION)/bin
+    endif
 else ifeq ($(TARGET_ARCH),x86)
 
 # Add the x86 toolchain bin dir if it actually exists