Set up rules to build static libraries for TARGET_2ND_ARCH

The rules for the 2nd arch are set up in the second inclusion
of static_library_internal.mk.
libfoo of the 2nd arch will be built into
$(PRODUCT_OUT)/obj_$(TARGET_2ND_ARCH)/libfoo_intermediates/libfoo.a.

Bug: 11654773
Change-Id: I1d92733968fc442e9225b4df5bd1b551a81d89f7
diff --git a/core/combo/TARGET_linux-arm.mk b/core/combo/TARGET_linux-arm.mk
index c8c75aa..bd9349c 100644
--- a/core/combo/TARGET_linux-arm.mk
+++ b/core/combo/TARGET_linux-arm.mk
@@ -180,7 +180,7 @@
 else
   # If BUILD_FDO_INSTRUMENT is turned off, then consider doing the FDO optimizations.
   # Set TARGET_FDO_PROFILE_PATH to set a custom profile directory for your build.
-  ifeq ($(strip $(TARGET_FDO_PROFILE_PATH)),)
+  ifeq ($(strip $($(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH)),)
     $(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH := fdo/profiles/$(TARGET_$(combo_2nd_arch_prefix)ARCH)/$(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT)
   else
     ifeq ($(strip $(wildcard $($(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH))),)