lmb: Remove lmb_reserve_flags()

lmb_reserve() is just calling lmb_reserve_flags() with LMB_NONE.
There's not much we gain from this abstraction.
So let's remove the latter, add the flags argument to lmb_reserve()
and make the code a bit easier to follow.

Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Tested-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/arch/powerpc/lib/misc.c b/arch/powerpc/lib/misc.c
index 4cd23b3..7e30341 100644
--- a/arch/powerpc/lib/misc.c
+++ b/arch/powerpc/lib/misc.c
@@ -40,7 +40,7 @@
 
 			printf("WARNING: adjusting available memory from 0x%lx to 0x%llx\n",
 			       size, (unsigned long long)bootm_size);
-			lmb_reserve(base, bootm_size - size);
+			lmb_reserve(base, bootm_size - size, LMB_NONE);
 		}
 
 #ifdef CONFIG_MP