ARM: tegra: unify Tegra186 Makefile a bit

Many files in arch/arm/mach-tegra are compiled conditionally based on
Kconfig variables, or applicable to all platforms. We can let the main
Tegra Makefile handle compiling (or not) those files to avoid each SoC-
specific Makefile needing to duplicate entries for those files. This
leaves the SoC-specific Makefiles to compile truly SoC-specific code.

In the future, we'll hopefully add Kconfig variables for all the other
files, and refactor those files, and so reduce the need for SoC-specific
Makefiles and/or ifdefs in the Makefiles.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>

arch/arm/mach-tegra/Makefile

@@ -15,23 +15,23 @@ else
 obj-$(CONFIG_CMD_ENTERRCM) += cmd_enterrcm.o
 endif
 
-obj-$(CONFIG_ARM64) += arm64-mmu.o
 obj-y += ap.o
 obj-y += board.o board2.o
 obj-y += cache.o
 obj-y += clock.o
-obj-y += lowlevel_init.o
 obj-y += pinmux-common.o
 obj-y += powergate.o
 obj-y += xusb-padctl-dummy.o
-obj-$(CONFIG_DISPLAY_CPUINFO) += sys_info.o
-obj-$(CONFIG_TEGRA_GPU) += gpu.o
-obj-$(CONFIG_TEGRA_CLOCK_SCALING) += emc.o
+endif
 
+obj-$(CONFIG_ARM64) += arm64-mmu.o
+obj-$(CONFIG_TEGRA_CLOCK_SCALING) += emc.o
+obj-$(CONFIG_TEGRA_GPU) += gpu.o
+obj-y += lowlevel_init.o
 ifndef CONFIG_SPL_BUILD
 obj-$(CONFIG_ARMV7_PSCI) += psci.o
 endif
-endif
+obj-$(CONFIG_DISPLAY_CPUINFO) += sys_info.o
 
 obj-$(CONFIG_TEGRA20) += tegra20/
 obj-$(CONFIG_TEGRA30) += tegra30/

arch/arm/mach-tegra/tegra186/Makefile

@@ -2,7 +2,4 @@
 #
 # SPDX-License-Identifier: GPL-2.0
 
-obj-y += ../arm64-mmu.o
 obj-y += ../board186.o
-obj-y += ../lowlevel_init.o
-obj-$(CONFIG_DISPLAY_CPUINFO) += ../sys_info.o