[roll] Roll fuchsia [f2fs] Introduce a fixed size of reserved space

This CL allocates the minimum required number of
sections for reserved space that f2fs uses
to migrate GC victim blocks and to preallocate
the space for all levels of temparature. Previously,
f2fs assumed the worst case scenario and assigned
too large space to GC buffers to mitigate the number
of checkpoint writes during GC. As the reserved
space cannot be used for user and op space,
this CL minimizes the reserved space and provides
more sections to user and op space while allowing
checkpoint writes during gc.

Original-Bug: b/374811602

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/945914
Original-Revision: 7b820af428e9e61f9fd98ef59ba640d747f776e8
GitOrigin-RevId: 0c276d1c3e461a58fc1d970513f803d500a2f73b
Change-Id: I9daefe836d4580ade0de1c24e18db98bb64a43b5

Author: Seokhwan Kim

stem

@@ -11,7 +11,7 @@
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-             revision="e6a67dc3acbf3513c5c8539836145c58f661c253"/>
+             revision="7b820af428e9e61f9fd98ef59ba640d747f776e8"/>
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