linux-yocto/4.14: fix kernel configuration audit warnings

Some of the reference BSPs for 4.14 need fixes that have been done
on 4.18 and master to silence warnings, so we cherry-pick the
following changes:

  f991b21d7858 config: flash: drop obselete config values
  da7524cf2980 edgerouter: Drop the obsolete kernel options
  675c5b0cde65 cfg: drop MACH_VERSATILE_PB and MACH_VERSTAILE_AB
  0936b18ed8d5 cfg/timer/rtc: toggle RTC_CLASS instead of GEN_RTC
  634d8f2230d1 mpc8315e-rdb: Drop the obsolete kernel options
  9beb3a28736e rt: drop obselete configuration options

(From OE-Core rev: bfe6a9b2d1a118791cebcd1019f3e80bced294c6)

Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-kernel/linux/linux-yocto-rt_4.14.bb

@@ -12,7 +12,7 @@ python () {
 }
 
 SRCREV_machine ?= "af1b926c9160b0dbf2bbe41b166a8a7b07191fd2"
-SRCREV_meta ?= "0936b18ed8d58257f8f1d79c085adbf6d4362530"
+SRCREV_meta ?= "f991b21d78588fa88d527e3607cc2dab35089ee8"
 
 SRC_URI = "git://git.yoctoproject.org/linux-yocto.git;branch=${KBRANCH};name=machine \
            git://git.yoctoproject.org/yocto-kernel-cache;type=kmeta;name=meta;branch=yocto-4.14;destsuffix=${KMETA}"

meta/recipes-kernel/linux/linux-yocto-tiny_4.14.bb

@@ -13,7 +13,7 @@ KMETA = "kernel-meta"
 KCONF_BSP_AUDIT_LEVEL = "2"
 
 SRCREV_machine ?= "74ecbeb03ebfc2b9a73a6554924b043b903295f5"
-SRCREV_meta ?= "0936b18ed8d58257f8f1d79c085adbf6d4362530"
+SRCREV_meta ?= "f991b21d78588fa88d527e3607cc2dab35089ee8"
 
 PV = "${LINUX_VERSION}+git${SRCPV}"
 

meta/recipes-kernel/linux/linux-yocto_4.14.bb

@@ -19,7 +19,7 @@ SRCREV_machine_qemux86 ?= "084af9624d268ddf4fd65b2f9e8e50ca2f22e62b"
 SRCREV_machine_qemux86-64 ?= "084af9624d268ddf4fd65b2f9e8e50ca2f22e62b"
 SRCREV_machine_qemumips64 ?= "44e1719a8f4fe10e88c13b9ec6c1fa1d041efaed"
 SRCREV_machine ?= "084af9624d268ddf4fd65b2f9e8e50ca2f22e62b"
-SRCREV_meta ?= "0936b18ed8d58257f8f1d79c085adbf6d4362530"
+SRCREV_meta ?= "f991b21d78588fa88d527e3607cc2dab35089ee8"
 
 SRC_URI = "git://git.yoctoproject.org/linux-yocto.git;name=machine;branch=${KBRANCH}; \
            git://git.yoctoproject.org/yocto-kernel-cache;type=kmeta;name=meta;branch=yocto-4.14;destsuffix=${KMETA}"