mm/memblock: add MEMBLOCK_RSRV_NOINIT into flagname[] array

The commit 77e6c43e ("memblock: introduce MEMBLOCK_RSRV_NOINIT flag")
skipped adding this newly introduced memblock flag into flagname[] array,
thus preventing a correct memblock flags output for applicable memblock
regions.

Link: https://lkml.kernel.org/r/20240209030912.1382251-1-anshuman.khandual@arm.com
Fixes: 77e6c43e ("memblock: introduce MEMBLOCK_RSRV_NOINIT flag")
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Mike Rapoport <rppt@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

mm/memblock.c

@@ -2249,6 +2249,7 @@ static const char * const flagname[] = {
 	[ilog2(MEMBLOCK_MIRROR)] = "MIRROR",
 	[ilog2(MEMBLOCK_NOMAP)] = "NOMAP",
 	[ilog2(MEMBLOCK_DRIVER_MANAGED)] = "DRV_MNG",
+	[ilog2(MEMBLOCK_RSRV_NOINIT)] = "RSV_NIT",
 };
 
 static int memblock_debug_show(struct seq_file *m, void *private)