lib: Move sbi core library to lib/sbi

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Acked-by: Anup Patel <anup.patel@wdc.com>

lib/sbi/objects.mk

@@ -0,0 +1,32 @@
+#
+# SPDX-License-Identifier: BSD-2-Clause
+#
+# Copyright (c) 2019 Western Digital Corporation or its affiliates.
+#
+# Authors:
+#   Anup Patel <anup.patel@wdc.com>
+#
+
+libsbi-objs-y += riscv_asm.o
+libsbi-objs-y += riscv_atomic.o
+libsbi-objs-y += riscv_hardfp.o
+libsbi-objs-y += riscv_locks.o
+libsbi-objs-y += riscv_unpriv.o
+
+libsbi-objs-y += sbi_console.o
+libsbi-objs-y += sbi_ecall.o
+libsbi-objs-y += sbi_emulate_csr.o
+libsbi-objs-y += sbi_fifo.o
+libsbi-objs-y += sbi_hart.o
+libsbi-objs-y += sbi_illegal_insn.o
+libsbi-objs-y += sbi_init.o
+libsbi-objs-y += sbi_ipi.o
+libsbi-objs-y += sbi_misaligned_ldst.o
+libsbi-objs-y += sbi_scratch.o
+libsbi-objs-y += sbi_system.o
+libsbi-objs-y += sbi_timer.o
+libsbi-objs-y += sbi_tlb.o
+libsbi-objs-y += sbi_trap.o
+
+# External Libraries to include
+PLATFORM_INCLUDE_LIBC=y