semver: powerpc64(le): Rename powerpc64le files to powerpc64

CARGO_CFG_TARGET_ARCH is powerpc64 on both powerpc64 and powerpc64le.
This would cause the powerpc64le semver files to be unused. Replace the
powerpc64 files with the powerpc64le ones, they are compatible with each
other and only differ in endianess. Linux, musl and glibc share the same
code for both endian targets.

See the cargo documentation:
https://doc.rust-lang.org/reference/conditional-compilation.html#target_arch

Signed-off-by: Jens Reidel <adrian@travitia.xyz>

Author: Gelbpunkt

libc-test/semver/linux-gnu-powerpc64le.txt renamed to libc-test/semver/linux-gnu-powerpc64.txt

@@ -2,29 +2,12 @@ B2500000
 B3000000
 B3500000
 B4000000
-Elf32_Rela
-Elf64_Rela
-KEYCTL_CAPABILITIES
-KEYCTL_CAPS0_BIG_KEY
-KEYCTL_CAPS0_CAPABILITIES
-KEYCTL_CAPS0_DIFFIE_HELLMAN
-KEYCTL_CAPS0_INVALIDATE
-KEYCTL_CAPS0_MOVE
-KEYCTL_CAPS0_PERSISTENT_KEYRINGS
-KEYCTL_CAPS0_PUBLIC_KEY
-KEYCTL_CAPS0_RESTRICT_KEYRING
-KEYCTL_CAPS1_NS_KEYRING_NAME
-KEYCTL_CAPS1_NS_KEY_TAG
-KEYCTL_MOVE
 MADV_SOFT_OFFLINE
 MAP_SYNC
 NFT_MSG_DELOBJ
 NFT_MSG_GETOBJ
 NFT_MSG_GETOBJ_RESET
 NFT_MSG_NEWOBJ
-PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
-PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP
-PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
 SCM_TIMESTAMPNS
 SCM_WIFI_STATUS
 SIGSTKFLT
@@ -161,5 +144,3 @@ TIOCGRS485
 TIOCSBRK
 TIOCSRS485
 flock64
-max_align_t
-sysctl