Fix install(1) usage to be compatible with OpenBSD's install(1).

Fix install(1) usage to be compatible with OpenBSD's install(1).

When creating a directory via the -d flag the -p flag cannot be
used at the same time. Also in the context of installing QEMU it
doesn't make sense to use the -p flag anyway so use the [default]
-c flag instead.
Signed-off-by: NBrad Smith <brad@comstyle.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

configure

@@ -3085,9 +3085,9 @@ echo "TOOLS=$tools" >> $config_host_mak
 echo "ROMS=$roms" >> $config_host_mak
 echo "MAKE=$make" >> $config_host_mak
 echo "INSTALL=$install" >> $config_host_mak
-echo "INSTALL_DIR=$install -d -m0755 -p" >> $config_host_mak
-echo "INSTALL_DATA=$install -m0644 -p" >> $config_host_mak
-echo "INSTALL_PROG=$install -m0755 -p" >> $config_host_mak
+echo "INSTALL_DIR=$install -d -m 0755" >> $config_host_mak
+echo "INSTALL_DATA=$install -c -m 0644" >> $config_host_mak
+echo "INSTALL_PROG=$install -c -m 0755" >> $config_host_mak
 echo "PYTHON=$python" >> $config_host_mak
 echo "CC=$cc" >> $config_host_mak
 echo "CC_I386=$cc_i386" >> $config_host_mak