Fix path to mnoGoSearch configs

--- ./scripts/udm-config.in

+++ ./scripts/udm-config.in

@@ -1,6 +1,6 @@

 #!/bin/sh

-udmsearch_cflags="@CFLAGS@ -I@prefix@/include @VIRT_INCLUDE@ @SOLID_INCLUDE@ @UNIXODBC_INCLUDE@ @IODBC_INCLUDE@ @EASYSOFT_INCLUDE@ @MYSQL_INCLUDE@ @PGSQL_INCLUDE@ @IBASE_INCLUDE@ @ORACLE8_INCLUDE@"

+udmsearch_cflags="@CFLAGS@ -I@prefix@/include/mnogosearch @VIRT_INCLUDE@ @SOLID_INCLUDE@ @UNIXODBC_INCLUDE@ @IODBC_INCLUDE@ @EASYSOFT_INCLUDE@ @MYSQL_INCLUDE@ @PGSQL_INCLUDE@ @IBASE_INCLUDE@ @ORACLE8_INCLUDE@"

 udmsearch_libs="@LIBS@ @VIRT_LFLAGS@ @SOLID_LFLAGS@ @UNIXODBC_LFLAGS@ @IODBC_LFLAGS@ @EASYSOFT_LFLAGS@ @MYSQL_LFLAGS@ @PGSQL_LFLAGS@ @IBASE_LFLAGS@ @ORACLE8_LFLAGS@ @SSL_LFLAGS@ -L@prefix@/lib -lmnogosearch -lmnogocharset"

 prefix=@prefix@

 sysconfdir=@sysconfdir@