libretro: also add x86_64 android / fix name of armv7a for play

.gitlab-ci.yml

@@ -114,8 +114,8 @@ android-arm64-v8a:
     ANDROID_NDK_VERSION: 29.0.14206865
     NDK_ROOT: /android-sdk-linux/ndk/$ANDROID_NDK_VERSION
 
-# Android ARMv7a
-android-armv7a:
+# Android ARMv7a (for play only)
+android-armeabi-v7a:
   extends:
     - .libretro-android-cmake-armeabi-v7a
     - .core-defs
@@ -125,6 +125,17 @@ android-armv7a:
     CORE_ARGS: -DLIBRETRO=ON -DENABLE_LTO=ON -DENABLE_GENERIC=ON
     NDK_ROOT: /android-sdk-linux/ndk/$ANDROID_NDK_VERSION
 
+# Android x86_64 (for play only)
+android-x86_64:
+  extends:
+    - .libretro-android-cmake-x86_64
+    - .core-defs
+  variables:
+    ANDROID_NDK_VERSION: 29.0.14206865
+    API_LEVEL: 24
+    CORE_ARGS: -DLIBRETRO=ON -DENABLE_LTO=ON
+    NDK_ROOT: /android-sdk-linux/ndk/$ANDROID_NDK_VERSION
+
 # iOS arm64
 libretro-build-ios-arm64:
   extends: