powerpc: sparse: Include headers for __weak symbols

Sometimes when sparse warns about undefined symbols, it isn't
because they should have 'static' added, it's because they're
overriding __weak symbols defined elsewhere, and the header has
been missed.

Fix a few of them by adding appropriate headers.

Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/kernel/process.c

@@ -38,6 +38,7 @@
 #include <linux/random.h>
 #include <linux/hw_breakpoint.h>
 #include <linux/uaccess.h>
+#include <linux/elf-randomize.h>
 
 #include <asm/pgtable.h>
 #include <asm/io.h>
@@ -55,6 +56,7 @@
 #include <asm/firmware.h>
 #endif
 #include <asm/code-patching.h>
+#include <asm/exec.h>
 #include <linux/kprobes.h>
 #include <linux/kdebug.h>
 

arch/powerpc/kernel/prom.c

@@ -34,6 +34,7 @@
 #include <linux/of.h>
 #include <linux/of_fdt.h>
 #include <linux/libfdt.h>
+#include <linux/cpu.h>
 
 #include <asm/prom.h>
 #include <asm/rtas.h>

arch/powerpc/kernel/time.c

@@ -55,6 +55,7 @@
 #include <linux/delay.h>
 #include <linux/irq_work.h>
 #include <linux/clk-provider.h>
+#include <linux/suspend.h>
 #include <asm/trace.h>
 
 #include <asm/io.h>

arch/powerpc/mm/mmap.c

@@ -26,6 +26,7 @@
 #include <linux/mm.h>
 #include <linux/random.h>
 #include <linux/sched.h>
+#include <linux/elf-randomize.h>
 
 /*
  * Top of mmap area (just below the process stack).