musl: add patch for aarch64 fregs and vregs.

Necessary for building elfutils for aarch64 without patches.

srcpkgs/musl/patches/aarch64-fregs.patch

@@ -0,0 +1,37 @@
+Use types compatible with glibc/kernel headers.
+
+diff --git a/arch/aarch64/bits/signal.h b/arch/aarch64/bits/signal.h
+index b71261f5..5098c734 100644
+--- arch/aarch64/bits/signal.h
++++ arch/aarch64/bits/signal.h
+@@ -11,7 +11,7 @@ typedef unsigned long greg_t;
+ typedef unsigned long gregset_t[34];
+ 
+ typedef struct {
+-	long double vregs[32];
++	__uint128_t vregs[32];
+ 	unsigned int fpsr;
+ 	unsigned int fpcr;
+ } fpregset_t;
+@@ -34,7 +34,7 @@ struct fpsimd_context {
+ 	struct _aarch64_ctx head;
+ 	unsigned int fpsr;
+ 	unsigned int fpcr;
+-	long double vregs[32];
++	__uint128_t vregs[32];
+ };
+ struct esr_context {
+ 	struct _aarch64_ctx head;
+diff --git a/arch/aarch64/bits/user.h b/arch/aarch64/bits/user.h
+index d12cdf7f..8a1002aa 100644
+--- arch/aarch64/bits/user.h
++++ arch/aarch64/bits/user.h
+@@ -6,7 +6,7 @@ struct user_regs_struct {
+ };
+ 
+ struct user_fpsimd_struct {
+-	long double vregs[32];
++	__uint128_t vregs[32];
+ 	unsigned int fpsr;
+ 	unsigned int fpcr;
+ };

srcpkgs/musl/template

@@ -2,7 +2,7 @@
 pkgname=musl
 reverts="1.2.0_1"
 version=1.1.24
-revision=3
+revision=4
 archs="*-musl"
 bootstrap=yes
 build_style=gnu-configure