Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/riscv/include/asm/Kbuild b/arch/riscv/include/asm/Kbuild
index efdbe31..16970f2 100644
--- a/arch/riscv/include/asm/Kbuild
+++ b/arch/riscv/include/asm/Kbuild
@@ -1,25 +1,19 @@
+# SPDX-License-Identifier: GPL-2.0
 generic-y += bugs.h
-generic-y += cacheflush.h
 generic-y += checksum.h
 generic-y += compat.h
-generic-y += cputime.h
 generic-y += device.h
 generic-y += div64.h
+generic-y += extable.h
+generic-y += flat.h
 generic-y += dma.h
 generic-y += dma-contiguous.h
 generic-y += dma-mapping.h
 generic-y += emergency-restart.h
-generic-y += errno.h
 generic-y += exec.h
 generic-y += fb.h
-generic-y += fcntl.h
-generic-y += futex.h
 generic-y += hardirq.h
-generic-y += hash.h
 generic-y += hw_irq.h
-generic-y += ioctl.h
-generic-y += ioctls.h
-generic-y += ipcbuf.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
@@ -28,34 +22,14 @@
 generic-y += local.h
 generic-y += local64.h
 generic-y += mm-arch-hooks.h
-generic-y += mman.h
-generic-y += module.h
-generic-y += msgbuf.h
-generic-y += mutex.h
-generic-y += param.h
+generic-y += msi.h
 generic-y += percpu.h
-generic-y += poll.h
-generic-y += posix_types.h
 generic-y += preempt.h
-generic-y += resource.h
-generic-y += scatterlist.h
 generic-y += sections.h
-generic-y += sembuf.h
 generic-y += serial.h
-generic-y += setup.h
-generic-y += shmbuf.h
 generic-y += shmparam.h
-generic-y += signal.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += stat.h
-generic-y += statfs.h
-generic-y += swab.h
-generic-y += termbits.h
-generic-y += termios.h
 generic-y += topology.h
 generic-y += trace_clock.h
-generic-y += types.h
 generic-y += unaligned.h
 generic-y += user.h
 generic-y += vga.h