qemu: define fdt_t types in libfdt_env.h from qemu

qemu: define fdt_t types in libfdt_env.h from qemu

* fixes
In file included from /home/oe/setup-scripts/build/tmp-angstrom_next-uclibc/sysroots/x86_64-linux/usr/include/libfdt.h:55:0,
                 from /home/oe/setup-scripts/build/tmp-angstrom_next-uclibc/work/x86_64-linux/qemu-native/1.4.0-r0/qemu-1.4.0/hw/arm/../../device_tree.c:28:
/home/oe/setup-scripts/build/tmp-angstrom_next-uclibc/sysroots/x86_64-linux/usr/include/fdt.h:58:2: error: unknown type name 'fdt32_t'
/home/oe/setup-scripts/build/tmp-angstrom_next-uclibc/sysroots/x86_64-linux/usr/include/fdt.h:59:2: error: unknown type name 'fdt32_t'
/home/oe/setup-scripts/build/tmp-angstrom_next-uclibc/sysroots/x86_64-linux/usr/include/fdt.h:60:2: error: unknown type name 'fdt32_t'
/home/oe/setup-scripts/build/tmp-angstrom_next-uclibc/sysroots/x86_64-linux/usr/include/fdt.h:61:2: error: unknown type name 'fdt32_t'
/home/oe/setup-scripts/build/tmp-angstrom_next-uclibc/sysroots/x86_64-linux/usr/include/fdt.h:62:2: error: unknown type name 'fdt32_t'
/home/oe/setup-scripts/build/tmp-angstrom_next-uclibc/sysroots/x86_64-linux/usr/include/fdt.h:63:2: error: unknown type name 'fdt32_t'
/home/oe/setup-scripts/build/tmp-angstrom_next-uclibc/sysroots/x86_64-linux/usr/include/fdt.h:64:2: error: unknown type name 'fdt32_t'
/home/oe/setup-scripts/build/tmp-angstrom_next-uclibc/sysroots/x86_64-linux/usr/include/fdt.h:67:2: error: unknown type name 'fdt32_t'
/home/oe/setup-scripts/build/tmp-angstrom_next-uclibc/sysroots/x86_64-linux/usr/include/fdt.h:70:2: error: unknown type name 'fdt32_t'
/home/oe/setup-scripts/build/tmp-angstrom_next-uclibc/sysroots/x86_64-linux/usr/include/fdt.h:73:2: error: unknown type name 'fdt32_t'
/home/oe/setup-scripts/build/tmp-angstrom_next-uclibc/sysroots/x86_64-linux/usr/include/fdt.h:77:2: error: unknown type name 'fdt64_t'
/home/oe/setup-scripts/build/tmp-angstrom_next-uclibc/sysroots/x86_64-linux/usr/include/fdt.h:78:2: error: unknown type name 'fdt64_t'
/home/oe/setup-scripts/build/tmp-angstrom_next-uclibc/sysroots/x86_64-linux/usr/include/fdt.h:82:2: error: unknown type name 'fdt32_t'
/home/oe/setup-scripts/build/tmp-angstrom_next-uclibc/sysroots/x86_64-linux/usr/include/fdt.h:87:2: error: unknown type name 'fdt32_t'
/home/oe/setup-scripts/build/tmp-angstrom_next-uclibc/sysroots/x86_64-linux/usr/include/fdt.h:88:2: error: unknown type name 'fdt32_t'
/home/oe/setup-scripts/build/tmp-angstrom_next-uclibc/sysroots/x86_64-linux/usr/include/fdt.h:89:2: error: unknown type name 'fdt32_t'

(From OE-Core rev: dfb0c2cf9799d084a76aa92e243c743d7ff05db8)

Signed-off-by: Henning Heinold <heinold@inf.fu-berlin.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>