stm32mp1: remove LINUX_DTB_BIN

Removes variable LINUX_DTB_BIN and uses $(STM32MP1_DTS_BASENAME).dtb
instead where applicable. This change makes the makefile easier to
maintain.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Etienne Carriere <etienne.carriere@foss.st.com>
diff --git a/stm32mp1.mk b/stm32mp1.mk
index e2fc64c..33e94d9 100644
--- a/stm32mp1.mk
+++ b/stm32mp1.mk
@@ -56,7 +56,6 @@
 U_BOOT_BIN		:= u-boot.bin
 U_BOOT_DTB		:= u-boot.dtb
 LINUX_KERNEL_BIN 	:= uImage
-LINUX_DTB_BIN		:= $(STM32MP1_DTS_BASENAME).dtb
 
 ################################################################################
 # Paths to git projects and various binaries
@@ -167,7 +166,7 @@
 
 linux: linux-common
 	@$(call install_in_binaries,$(LINUX_PATH)/arch/arm/boot/$(LINUX_KERNEL_BIN))
-	@$(call install_in_binaries,$(LINUX_PATH)/arch/arm/boot/dts/st/$(LINUX_DTB_BIN))
+	@$(call install_in_binaries,$(LINUX_PATH)/arch/arm/boot/dts/st/$(STM32MP1_DTS_BASENAME).dtb)
 
 linux-defconfig-clean: linux-defconfig-clean-common
 
@@ -230,7 +229,7 @@
 	$(call install_in_br_images,$(U_BOOT_BIN))
 	$(call install_in_br_images,$(U_BOOT_DTB))
 	$(call install_in_br_images,$(LINUX_KERNEL_BIN))
-	$(call install_in_br_images,$(LINUX_DTB_BIN))
+	$(call install_in_br_images,$(STM32MP1_DTS_BASENAME).dtb)
 	$(call install_in_br_images,$(OPTEE_HEADER_BIN))
 	$(call install_in_br_images,$(OPTEE_PAGER_BIN))
 	$(call install_in_br_images,$(OPTEE_PAGEABLE_BIN))