net-libs/ngtcp2: re-fix broken elibtoolize handling

Broadly, elibtoolize is "probably needed" for any autotools project
which also produces libraries. Several patches apply even for freshly
eautoreconf'ed builds.

In commit 0d76d96579, an existing
elibtoolize was mysteriously:

- added to 1.24 (it was missing?), but without required inherit

- *omitted* from 1.25

- inherit removed from 9999, thus breaking "copy + single source
  live/stable ebuilds". elibtoolize unconditionally runs, and gets
  indirectly inherited via autotools in live only.

Revert all ebuilds to the same consistent behavior. Fixes:
```
 * Messages for package net-libs/ngtcp2-1.24.0:
 * Log file: /var/log/portage/build/net-libs/ngtcp2-1.24.0:20260826-035628.log

 * QA Notice: command not found:
 *
 * 	/var/tmp/portage/net-libs/ngtcp2-1.24.0/temp/environment: line 1315: elibtoolize: command not found
```

and also pkgcheck:
```
  MissingInherits: version 1.24.0: libtool: missing inherit usage: 'elibtoolize', line 52
  IndirectInherits: version 9999: libtool: indirect inherit usage: 'elibtoolize', line 52
```

For 1.25 we now go back to applying:
```
 * Running elibtoolize in: ngtcp2-1.25.0/
 *   Applying portage/1.2.0 patch ...
 *   Applying sed/1.5.6 patch ...
 *   Applying as-needed/2.5.0 patch ...
 *   Applying werror/2.4.7-debian patch ...
 *   Applying cxx-pthread/2.4.6 patch ...
 *   Applying color-record/2.4.7-debian patch ...
 *   Applying openmp/2.4.7 patch ...
 *   Applying verbose-pic/2.4.7 patch ...
 *   Applying clang-runtime-ltmain/2.4.7 patch ...
 *   Applying ppc64le/2.4.4 patch ...
 *   Applying fix-file-check/2.5.0 patch ...
 *   Applying clang-runtime/2.4.7 patch ...
```

Fixes: 0d76d96579
Bug: https://bugs.gentoo.org/978993
Signed-off-by: Eli Schwartz <eschwartz@gentoo.org>

net-libs/ngtcp2/ngtcp2-1.24.0.ebuild

@@ -5,7 +5,7 @@ EAPI=8
 
 # Built with autotools rather than cmake to avoid circular dep (bug #951524
 
-inherit multilib-minimal
+inherit libtool multilib-minimal
 
 if [[ ${PV} == 9999 ]] ; then
 	EGIT_REPO_URI="https://github.com/ngtcp2/ngtcp2.git"

net-libs/ngtcp2/ngtcp2-1.25.0.ebuild

@@ -5,7 +5,7 @@ EAPI=8
 
 # Built with autotools rather than cmake to avoid circular dep (bug #951524
 
-inherit multilib-minimal
+inherit libtool multilib-minimal
 
 if [[ ${PV} == 9999 ]] ; then
 	EGIT_REPO_URI="https://github.com/ngtcp2/ngtcp2.git"
@@ -49,6 +49,7 @@ QA_CONFIG_IMPL_DECL_SKIP=(
 
 src_prepare() {
 	default
+	elibtoolize # bug #978993
 	[[ ${PV} == 9999 ]] && eautoreconf
 }
 

net-libs/ngtcp2/ngtcp2-9999.ebuild

@@ -5,7 +5,7 @@ EAPI=8
 
 # Built with autotools rather than cmake to avoid circular dep (bug #951524
 
-inherit multilib-minimal
+inherit libtool multilib-minimal
 
 if [[ ${PV} == 9999 ]] ; then
 	EGIT_REPO_URI="https://github.com/ngtcp2/ngtcp2.git"