[openwrt/openwrt] glibc: update to latest 2.31 commit

[LEDE Commits]

dedeckeh pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/b90a4a8e084640d74d28003f41b81183546f5840

commit b90a4a8e084640d74d28003f41b81183546f5840
Author: Hans Dedecker <dedeckeh at gmail.com>
AuthorDate: Tue Oct 20 21:43:51 2020 +0200

    glibc: update to latest 2.31 commit
    
    4bc9918c99 AArch64: Use __memcpy_simd on Neoverse N2/V1
    4722d1fb9d [AArch64] Improve integer memcpy
    bea507a3f5 AArch64: Rename IS_ARES to IS_NEOVERSE_N1
    d0a5b76902 AArch64: Improve backwards memmove performance
    24a30c5959 AArch64: Add optimized Q-register memcpy
    88db98fa6e AArch64: Align ENTRY to a cacheline
    
    Signed-off-by: Hans Dedecker <dedeckeh at gmail.com>
---
 toolchain/glibc/common.mk | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/toolchain/glibc/common.mk b/toolchain/glibc/common.mk
index 2a223484da..ad4b324374 100644
--- a/toolchain/glibc/common.mk
+++ b/toolchain/glibc/common.mk
@@ -12,8 +12,8 @@ PKG_RELEASE:=1
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
-PKG_SOURCE_VERSION:=32965a46ce978f271ec6d3745f951da111c8e74a
-PKG_MIRROR_HASH:=f4d2e53aef57412740536fc9aea6cdcebc4b2b50461343f4eb438d507705e046
+PKG_SOURCE_VERSION:=4bc9918c998085800ecf5bbb3c863e66ea6252a0
+PKG_MIRROR_HASH:=51877ffff6819b5ccc004a842de755c6c203996d673d94d7013927712e252c17
 PKG_SOURCE_URL:=https://sourceware.org/git/glibc.git
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.xz