[arm*] Enable STRICT_DEVMEM

This enables STRICT_DEVMEM in the top-level config rather than per-
architecture, but the only additional kernel architectures that we
build and that support it are arm and arm64.

debian/changelog

@@ -3,6 +3,7 @@ linux (4.8~rc8-1~exp2) UNRELEASED; urgency=medium
   * [amd64] Enable LEGACY_VSYSCALL_NONE instead of LEGACY_VSYSCALL_EMULATE.
     This breaks (e)glibc 2.13 and earlier, and can be reverted using the kernel
     parameter: vsyscall=emulate
+  * [arm*] Enable STRICT_DEVMEM
 
  -- Ben Hutchings <ben@decadent.org.uk>  Sat, 01 Oct 2016 21:51:33 +0100
 

debian/config/config

@@ -5788,6 +5788,7 @@ CONFIG_TEST_BPF=m
 CONFIG_TEST_FIRMWARE=m
 # CONFIG_TEST_UDELAY is not set
 CONFIG_TEST_STATIC_KEYS=m
+CONFIG_STRICT_DEVMEM=y
 
 ##
 ## file: lib/fonts/Kconfig

debian/config/kernelarch-x86/config

@@ -1876,7 +1876,6 @@ CONFIG_MMIOTRACE=y
 # CONFIG_DEBUG_SHIRQ is not set
 # CONFIG_PROVIDE_OHCI1394_DMA_INIT is not set
 CONFIG_MEMTEST=y
-CONFIG_STRICT_DEVMEM=y
 
 ##
 ## file: lib/xz/Kconfig

debian/config/s390x/config

@@ -170,11 +170,6 @@ CONFIG_DIAG288_WATCHDOG=m
 ##
 # CONFIG_PCI_QUIRKS is not set
 
-##
-## file: lib/Kconfig.debug
-##
-CONFIG_STRICT_DEVMEM=y
-
 ##
 ## file: mm/Kconfig
 ##