gcc14: Add ppc FPU patch

This patch is from upstream gcc commit at:

gcc-mirror/gcc@1cfe4a4

Per barracuda156@, this is needed for gfortran on ppc.
See macports#26655 (comment)

lang/gcc14/Portfile

@@ -177,6 +177,7 @@ if { ${os.platform} eq "darwin" } {
     # Patch generated from https://github.com/iains/gcc-14-branch
     # git diff --no-prefix releases/gcc-14.2.0 gcc-14.2-darwin-r1
     patchfiles-append      patch-darwin-gcc-${version}.diff
+
     # GCC fixinc work-around for sys/ucred.h on OSX10.14.4 no longer seems to work ???
     if { ${os.major} == 18 } {
         patchfiles-append  patch-OSX10.14-ucred-atomic-define.diff
@@ -193,6 +194,10 @@ if { ${os.platform} eq "darwin" } {
                            0002-libgcc-Darwin-Drop-the-legacy-library-build-for-macO.patch \
                            0003-libgcc-Darwin-Don-t-build-legacy-libgcc_s.1-on-macOS.patch
     }
+
+    # This patch has been merged upstream in https://github.com/gcc-mirror/gcc/commit/1cfe4a4d0d4447b364815d5e5c889deb2e533669
+    # Remove it when upgrading gcc to a version that has it.
+    patchfiles-append      darwin-ppc-fpu.patch
 }
 
 # Since GCC 7.4.0, during configure, it detects features supported by target-as.