Replace is-vendor-board-platform with is-vendor-board-qcom. am: 1a2804acbf am: aa09d75b5d

Original change: https://android-review.googlesource.com/c/platform/hardware/qcom/sdm845/bt/+/1866282

Change-Id: I844fc60a41cded158857046b31b5b016710906e5
diff --git a/Android.mk b/Android.mk
index da21c67..7adf39a 100644
--- a/Android.mk
+++ b/Android.mk
@@ -1,4 +1,4 @@
-ifeq ($(call is-vendor-board-platform,QCOM),true)
+ifneq (,$(call is-vendor-board-qcom))
 ifneq ($(BUILD_WITHOUT_VENDOR),true)
 include $(call all-named-subdir-makefiles,libbt-vendor)
 endif