configure.ac: Rename the  gallium_require_llvm helper

Drop the gallium prefix since we're about it use it throughout the
configure.

Note we do want to check for enable_gallium_llvm check since (as
explicitly requested) the toggle should mean --enable-llvm. Latter of
which to be resolved with later patches.

Cc: Dave Airlie <airlied@redhat.com>
Cc: "17.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Tobias Droste <tdroste@gmx.de>
diff --git a/configure.ac b/configure.ac
index 8fd7b6f..9ece924 100644
--- a/configure.ac
+++ b/configure.ac
@@ -967,6 +967,12 @@
     fi
 }
 
+require_llvm() {
+    if test "x$enable_gallium_llvm" != "xyes"; then
+        AC_MSG_ERROR([--enable-gallium-llvm is required when building $1])
+    fi
+}
+
 llvm_check_version_for() {
     if test "x$MESA_LLVM" = x0; then
         AC_MSG_ERROR([LLVM $1 or newer is required for $2])
@@ -2196,15 +2202,6 @@
 AC_SUBST([D3D_DRIVER_INSTALL_DIR])
 
 dnl
-dnl Gallium helper functions
-dnl
-gallium_require_llvm() {
-    if test "x$enable_gallium_llvm" != "xyes"; then
-        AC_MSG_ERROR([--enable-gallium-llvm is required when building $1])
-    fi
-}
-
-dnl
 dnl r300 doesn't strictly require LLVM, but for performance reasons we
 dnl highly recommend LLVM usage. So require it at least on x86 and x86_64
 dnl architectures.
@@ -2212,7 +2209,7 @@
 r300_require_llvm() {
     case "$host" in *gnux32) return;; esac
     case "$host_cpu" in
-    i*86|x86_64|amd64) gallium_require_llvm $1
+    i*86|x86_64|amd64) require_llvm $1
         ;;
     esac
 }
@@ -2345,7 +2342,7 @@
             ;;
         xswr)
             llvm_check_version_for $LLVM_REQUIRED_SWR "swr"
-            gallium_require_llvm "swr"
+            require_llvm "swr"
 
             swr_require_cxx_feature_flags "C++11" "__cplusplus >= 201103L" \
                 ",-std=c++11" \