main/efivar: simplify and enable on s390x

Ref https://github.com/rhboot/efivar/pull/198

main/efivar/APKBUILD

@@ -5,13 +5,11 @@ pkgver=39
 pkgrel=0
 pkgdesc="Tools and library to manipulate EFI variables"
 url="https://github.com/rhboot/efivar"
-arch="all !s390x"
+arch="all"
 license="LGPL-2.1-only"
 makedepends="popt-dev linux-headers mandoc"
 subpackages="$pkgname-dev $pkgname-doc $pkgname-libs"
-source="$pkgname-$pkgver.tar.gz::https://github.com/rhboot/efivar/archive/refs/tags/$pkgver.tar.gz
-	ppc64le-compat.patch
-	"
+source="$pkgname-$pkgver.tar.gz::https://github.com/rhboot/efivar/archive/refs/tags/$pkgver.tar.gz"
 
 prepare() {
 	default_prepare
@@ -19,7 +17,7 @@ prepare() {
 }
 
 build() {
-	libdir="/usr/lib" make
+	libdir="/usr/lib" make HOST_MARCH=
 }
 
 package() {
@@ -33,5 +31,4 @@ check() {
 
 sha512sums="
 04493c30efbfc2773abac9a3dd93aa13403c05e29e3bfc72877d2054930811fae99119aadcb1729b6ca85abf5a24db786ea0c27c16d5458ef1b19e74696f5ff7  efivar-39.tar.gz
-6a1210b51c647fe6b24d05e1e39518531c3ec2cdd781f0627ec878ec11515949c38021c27e8f8b0138e53e9aafb5a4b266b7b8588d5bcdfd57f45d6316d4ccb0  ppc64le-compat.patch
 "

main/efivar/ppc64le-compat.patch

@@ -1,22 +0,0 @@
-diff --git a/src/include/defaults.mk b/src/include/defaults.mk
-index 4da0cde..ccfadf2 100644
---- a/src/include/defaults.mk
-+++ b/src/include/defaults.mk
-@@ -73,6 +73,7 @@ override SOFLAGS = $(_SOFLAGS) \
- 
- HOST_ARCH=$(shell uname -m)
- ifneq ($(HOST_ARCH),ia64)
-+ifneq ($(HOST_ARCH),ppc64le)
- ifneq ($(HOST_ARCH),riscv64)
- 	HOST_MARCH=-march=native
- else
-@@ -81,6 +82,9 @@ endif
- else
- 	HOST_MARCH=
- endif
-+else
-+	HOST_MARCH=
-+endif
- HOST_CPPFLAGS ?= $(CPPFLAGS)
- override _HOST_CPPFLAGS := $(HOST_CPPFLAGS)
- override HOST_CPPFLAGS = $(_HOST_CPPFLAGS) \