[libc] add more arch entrypoints for stdc_leading_zeros (#79923)

Otherwise the include test fails on these targets.

Author: nickdesaulniers

libc/config/linux/aarch64/entrypoints.txt

@@ -89,6 +89,13 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.inttypes.strtoimax
     libc.src.inttypes.strtoumax
 
+    # stdbit.h entrypoints
+    libc.src.stdbit.stdc_leading_zeros_uc
+    libc.src.stdbit.stdc_leading_zeros_us
+    libc.src.stdbit.stdc_leading_zeros_ui
+    libc.src.stdbit.stdc_leading_zeros_ul
+    libc.src.stdbit.stdc_leading_zeros_ull
+
     # stdlib.h entrypoints
     libc.src.stdlib.abs
     libc.src.stdlib.atoi

libc/config/linux/aarch64/headers.txt

@@ -10,6 +10,7 @@ set(TARGET_PUBLIC_HEADERS
     libc.include.math
     libc.include.pthread
     libc.include.signal
+    libc.include.stdbit
     libc.include.stdio
     libc.include.stdlib
     libc.include.string

libc/config/linux/arm/entrypoints.txt

@@ -67,6 +67,13 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.inttypes.strtoimax
     libc.src.inttypes.strtoumax
 
+    # stdbit.h entrypoints
+    libc.src.stdbit.stdc_leading_zeros_uc
+    libc.src.stdbit.stdc_leading_zeros_us
+    libc.src.stdbit.stdc_leading_zeros_ui
+    libc.src.stdbit.stdc_leading_zeros_ul
+    libc.src.stdbit.stdc_leading_zeros_ull
+
     # stdlib.h entrypoints
     libc.src.stdlib.abs
     libc.src.stdlib.atoi

libc/config/linux/arm/headers.txt

@@ -5,6 +5,7 @@ set(TARGET_PUBLIC_HEADERS
     libc.include.float
     libc.include.inttypes
     libc.include.math
+    libc.include.stdbit
     libc.include.stdlib
     libc.include.string
     libc.include.strings

libc/config/linux/riscv/entrypoints.txt

@@ -91,6 +91,13 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.inttypes.strtoimax
     libc.src.inttypes.strtoumax
 
+    # stdbit.h entrypoints
+    libc.src.stdbit.stdc_leading_zeros_uc
+    libc.src.stdbit.stdc_leading_zeros_us
+    libc.src.stdbit.stdc_leading_zeros_ui
+    libc.src.stdbit.stdc_leading_zeros_ul
+    libc.src.stdbit.stdc_leading_zeros_ull
+
     # stdlib.h entrypoints
     libc.src.stdlib.abs
     libc.src.stdlib.atoi

libc/config/linux/riscv/headers.txt

@@ -15,6 +15,7 @@ set(TARGET_PUBLIC_HEADERS
     libc.include.signal
     libc.include.spawn
     libc.include.setjmp
+    libc.include.stdbit
     libc.include.stdio
     libc.include.stdlib
     libc.include.string