ANDROID: Delete build.config.amlogic.

All build configs can be represented in BUILD.bazel.

As a side effect of setting kernel_build(defconfig), Kleaf enforces that
the final .config has all values required by amlogic_gki.fragment. If
that causes build errors like the following in the future, we should
either fix amlogic_gki.fragment, or set
kernel_build(check_defconfig = "disabled").

    ERROR: CONFIG_BRCMUTIL: actual '', expected 'm' from common/arch/arm64/configs/amlogic_gki.fragment

Bug: 236012223
Change-Id: I7ef7a27159447e3d9d2609ee7586a67e2c685459
Signed-off-by: HONG Yifan <elsk@google.com>

BUILD.bazel

@@ -1191,7 +1191,9 @@ kernel_build(
         "vmlinux",
         "vmlinux.symvers",
     ],
-    build_config = "build.config.amlogic",
+    arch = "arm64",
+    build_config = "build.config.common",
+    defconfig = "arch/arm64/configs/gki_defconfig",
     make_goals = [
         "Image",
         "modules",
@@ -1202,6 +1204,7 @@ kernel_build(
     ],
     makefile = ":Makefile",
     module_outs = get_gki_modules_list("arm64") + get_kunit_modules_list("arm64") + _AMLOGIC_MODULE_OUTS + _AMLOGIC_WATCHDOG_MODULE_OUTS,
+    pre_defconfig_fragments = ["arch/arm64/configs/amlogic_gki.fragment"],
     visibility = ["//visibility:private"],
 )
 
@@ -1220,7 +1223,9 @@ kernel_build(
         "vmlinux",
         "vmlinux.symvers",
     ],
-    build_config = "build.config.amlogic",
+    arch = "arm64",
+    build_config = "build.config.common",
+    defconfig = "arch/arm64/configs/gki_defconfig",
     make_goals = [
         "Image",
         "modules",
@@ -1231,6 +1236,7 @@ kernel_build(
     ],
     makefile = ":Makefile",
     module_outs = get_gki_modules_list("arm64") + get_kunit_modules_list("arm64") + _AMLOGIC_MODULE_OUTS,
+    pre_defconfig_fragments = ["arch/arm64/configs/amlogic_gki.fragment"],
     visibility = ["//visibility:private"],
 )
 

build.config.amlogic

@@ -1,8 +0,0 @@
-. ${ROOT_DIR}/${KERNEL_DIR}/build.config.common
-. ${ROOT_DIR}/${KERNEL_DIR}/build.config.gki.aarch64
-
-DEFCONFIG=amlogic_gki_defconfig
-FRAGMENT_CONFIG=${KERNEL_DIR}/arch/arm64/configs/amlogic_gki.fragment
-
-PRE_DEFCONFIG_CMDS="KCONFIG_CONFIG=${ROOT_DIR}/${KERNEL_DIR}/arch/arm64/configs/${DEFCONFIG} ${ROOT_DIR}/${KERNEL_DIR}/scripts/kconfig/merge_config.sh -m -r ${ROOT_DIR}/${KERNEL_DIR}/arch/arm64/configs/gki_defconfig ${ROOT_DIR}/${FRAGMENT_CONFIG}"
-POST_DEFCONFIG_CMDS="rm ${ROOT_DIR}/${KERNEL_DIR}/arch/arm64/configs/${DEFCONFIG}"